Search Results for author: Salman Khan

Found 152 papers, 113 papers with code

Fixing Localization Errors to Improve Image Classification

1 code implementation ECCV 2020 Guolei Sun, Salman Khan, Wen Li, Hisham Cholakkal, Fahad Shahbaz Khan, Luc van Gool

This way, in an effort to fix localization errors, our loss provides an extra supervisory signal that helps the model to better discriminate between similar classes.

Classification General Classification +3

ELGC-Net: Efficient Local-Global Context Aggregation for Remote Sensing Change Detection

1 code implementation26 Mar 2024 Mubashir Noman, Mustansar Fiaz, Hisham Cholakkal, Salman Khan, Fahad Shahbaz Khan

Deep learning has shown remarkable success in remote sensing change detection (CD), aiming to identify semantic change regions between co-registered satellite image pairs acquired at distinct time stamps.

Change Detection

Composed Video Retrieval via Enriched Context and Discriminative Embeddings

1 code implementation25 Mar 2024 Omkar Thawakar, Muzammal Naseer, Rao Muhammad Anwer, Salman Khan, Michael Felsberg, Mubarak Shah, Fahad Shahbaz Khan

Composed video retrieval (CoVR) is a challenging problem in computer vision which has recently highlighted the integration of modification text with visual queries for more sophisticated video search in large databases.

Composed Video Retrieval (CoVR) Retrieval

AdaIR: Adaptive All-in-One Image Restoration via Frequency Mining and Modulation

1 code implementation21 Mar 2024 Yuning Cui, Syed Waqas Zamir, Salman Khan, Alois Knoll, Mubarak Shah, Fahad Shahbaz Khan

Our approach is motivated by the observation that different degradation types impact the image content on different frequency subbands, thereby requiring different treatments for each restoration task.

Deblurring Denoising +3

Hierarchical Text-to-Vision Self Supervised Alignment for Improved Histopathology Representation Learning

1 code implementation21 Mar 2024 Hasindri Watawana, Kanchana Ranasinghe, Tariq Mahmood, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan

Self-supervised representation learning has been highly promising for histopathology image analysis with numerous approaches leveraging their patient-slide-patch hierarchy to learn better representations.

Representation Learning Self-Supervised Learning

Rethinking Transformers Pre-training for Multi-Spectral Satellite Imagery

1 code implementation8 Mar 2024 Mubashir Noman, Muzammal Naseer, Hisham Cholakkal, Rao Muhammad Anwar, Salman Khan, Fahad Shahbaz Khan

Recent advances in unsupervised learning have demonstrated the ability of large vision models to achieve promising results on downstream tasks by pre-training on large amount of unlabelled data.

Multi-Label Classification

ObjectCompose: Evaluating Resilience of Vision-Based Models on Object-to-Background Compositional Changes

1 code implementation7 Mar 2024 Hashmat Shadab Malik, Muhammad Huzaifa, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan

We produce various versions of standard vision datasets (ImageNet, COCO), incorporating either diverse and realistic backgrounds into the images or introducing color, texture, and adversarial changes in the background.

Object

MedContext: Learning Contextual Cues for Efficient Volumetric Medical Segmentation

1 code implementation27 Feb 2024 Hanan Gani, Muzammal Naseer, Fahad Khan, Salman Khan

The proposed approach induces contextual knowledge in the network by learning to reconstruct the missing organ or parts of an organ in the output segmentation space.

Segmentation Transfer Learning

PALO: A Polyglot Large Multimodal Model for 5B People

1 code implementation22 Feb 2024 Muhammad Maaz, Hanoona Rasheed, Abdelrahman Shaker, Salman Khan, Hisham Cholakal, Rao M. Anwer, Tim Baldwin, Michael Felsberg, Fahad S. Khan

PALO offers visual reasoning capabilities in 10 major languages, including English, Chinese, Hindi, Spanish, French, Arabic, Bengali, Russian, Urdu, and Japanese, that span a total of ~5B people (65% of the world population).

Language Modelling Large Language Model +1

BiMediX: Bilingual Medical Mixture of Experts LLM

1 code implementation20 Feb 2024 Sara Pieri, Sahal Shaji Mullappilly, Fahad Shahbaz Khan, Rao Muhammad Anwer, Salman Khan, Timothy Baldwin, Hisham Cholakkal

In this paper, we introduce BiMediX, the first bilingual medical mixture of experts LLM designed for seamless interaction in both English and Arabic.

Multiple-choice Open-Ended Question Answering

Video-GroundingDINO: Towards Open-Vocabulary Spatio-Temporal Video Grounding

1 code implementation31 Dec 2023 Syed Talal Wasim, Muzammal Naseer, Salman Khan, Ming-Hsuan Yang, Fahad Shahbaz Khan

Our contributions include a novel spatio-temporal video grounding model, surpassing state-of-the-art results in closed-set evaluations on multiple datasets and demonstrating superior performance in open-vocabulary scenarios.

Spatio-Temporal Video Grounding Video Grounding +1

VQA4CIR: Boosting Composed Image Retrieval with Visual Question Answering

1 code implementation19 Dec 2023 Chun-Mei Feng, Yang Bai, Tao Luo, Zhen Li, Salman Khan, WangMeng Zuo, Xinxing Xu, Rick Siow Mong Goh, Yong liu

By feeding the retrieved image and question to the VQA model, one can find the images inconsistent with relative caption when the answer by VQA is inconsistent with the answer in the QA pair.

Image Retrieval Question Answering +2

Arabic Mini-ClimateGPT : A Climate Change and Sustainability Tailored Arabic LLM

1 code implementation14 Dec 2023 Sahal Shaji Mullappilly, Abdelrahman Shaker, Omkar Thawakar, Hisham Cholakkal, Rao Muhammad Anwer, Salman Khan, Fahad Shahbaz Khan

To this end, we propose a light-weight Arabic Mini-ClimateGPT that is built on an open-source LLM and is specifically fine-tuned on a conversational-style instruction tuning curated Arabic dataset Clima500-Instruct with over 500k instructions about climate change and sustainability.

How Well Does GPT-4V(ision) Adapt to Distribution Shifts? A Preliminary Investigation

1 code implementation12 Dec 2023 Zhongyi Han, Guanglin Zhou, Rundong He, Jindong Wang, Tailin Wu, Yilong Yin, Salman Khan, Lina Yao, Tongliang Liu, Kun Zhang

We further investigate its adaptability to controlled data perturbations and examine the efficacy of in-context learning as a tool to enhance its adaptation.

Anomaly Detection Autonomous Driving +6

Spatiotemporal Event Graphs for Dynamic Scene Understanding

no code implementations11 Dec 2023 Salman Khan

In this thesis, we present a series of frameworks for dynamic scene understanding starting from road event detection from an autonomous driving perspective to complex video activity detection, followed by continual learning approaches for the life-long learning of the models.

Action Detection Activity Detection +4

GeoChat: Grounded Large Vision-Language Model for Remote Sensing

1 code implementation24 Nov 2023 Kartik Kuckreja, Muhammad Sohail Danish, Muzammal Naseer, Abhijit Das, Salman Khan, Fahad Shahbaz Khan

Furthermore, the lack of domain-specific multimodal instruction following data as well as strong backbone models for RS make it hard for the models to align their behavior with user queries.

Instruction Following Language Modelling +3

Hardware Resilience Properties of Text-Guided Image Classifiers

1 code implementation NeurIPS 2023 Syed Talal Wasim, Kabila Haile Soboka, Abdulrahman Mahmoud, Salman Khan, David Brooks, Gu-Yeon Wei

This paper presents a novel method to enhance the reliability of image classification models during deployment in the face of transient hardware errors.

Classification Image Classification

PG-Video-LLaVA: Pixel Grounding Large Video-Language Models

1 code implementation22 Nov 2023 Shehan Munasinghe, Rusiru Thushara, Muhammad Maaz, Hanoona Abdul Rasheed, Salman Khan, Mubarak Shah, Fahad Khan

Extending image-based Large Multimodal Models (LMMs) to videos is challenging due to the inherent complexity of video data.

Benchmarking Phrase Grounding +4

Cal-DETR: Calibrated Detection Transformer

1 code implementation NeurIPS 2023 Muhammad Akhtar Munir, Salman Khan, Muhammad Haris Khan, Mohsen Ali, Fahad Shahbaz Khan

Third, we develop a logit mixing approach that acts as a regularizer with detection-specific losses and is also complementary to the uncertainty-guided logit modulation technique to further improve the calibration performance.

Decision Making

GLaMM: Pixel Grounding Large Multimodal Model

1 code implementation6 Nov 2023 Hanoona Rasheed, Muhammad Maaz, Sahal Shaji Mullappilly, Abdelrahman Shaker, Salman Khan, Hisham Cholakkal, Rao M. Anwer, Erix Xing, Ming-Hsuan Yang, Fahad S. Khan

In this work, we present Grounding LMM (GLaMM), the first model that can generate natural language responses seamlessly intertwined with corresponding object segmentation masks.

Conversational Question Answering Image Captioning +5

LLM Blueprint: Enabling Text-to-Image Generation with Complex and Detailed Prompts

1 code implementation16 Oct 2023 Hanan Gani, Shariq Farooq Bhat, Muzammal Naseer, Salman Khan, Peter Wonka

Diffusion-based generative models have significantly advanced text-to-image generation but encounter challenges when processing lengthy and intricate text prompts describing complex scenes with multiple objects.

Layout-to-Image Generation Object +2

Sentence-level Prompts Benefit Composed Image Retrieval

1 code implementation9 Oct 2023 Yang Bai, Xinxing Xu, Yong liu, Salman Khan, Fahad Khan, WangMeng Zuo, Rick Siow Mong Goh, Chun-Mei Feng

Composed image retrieval (CIR) is the task of retrieving specific images by using a query that involves both a reference image and a relative caption.

Attribute Composed Image Retrieval (CoIR) +2

3D Indoor Instance Segmentation in an Open-World

1 code implementation NeurIPS 2023 Mohamed El Amine Boudjoghra, Salwa K. Al Khatib, Jean Lahoud, Hisham Cholakkal, Rao Muhammad Anwer, Salman Khan, Fahad Khan

We argue that such a closed-world assumption is restrictive and explore for the first time 3D indoor instance segmentation in an open-world setting, where the model is allowed to distinguish a set of known classes as well as identify an unknown object as unknown and then later incrementally learning the semantic category of the unknown when the corresponding category labels are available.

3D Instance Segmentation Segmentation +1

Unsupervised Landmark Discovery Using Consistency Guided Bottleneck

1 code implementation19 Sep 2023 Mamona Awan, Muhammad Haris Khan, Sanoojan Baliah, Muhammad Ahmad Waseem, Salman Khan, Fahad Shahbaz Khan, Arif Mahmood

In the current work, we introduce a consistency-guided bottleneck in an image reconstruction-based pipeline that leverages landmark consistency, a measure of compatibility score with the pseudo-ground truth to generate adaptive heatmaps.

Image Reconstruction

Towards Realistic Zero-Shot Classification via Self Structural Semantic Alignment

1 code implementation24 Aug 2023 Sheng Zhang, Muzammal Naseer, Guangyi Chen, Zhiqiang Shen, Salman Khan, Kun Zhang, Fahad Khan

To address this challenge, we propose the Self Structural Semantic Alignment (S^3A) framework, which extracts the structural semantic information from unlabeled data while simultaneously self-learning.

Self-Learning Zero-Shot Learning

Diverse Data Augmentation with Diffusions for Effective Test-time Prompt Tuning

1 code implementation ICCV 2023 Chun-Mei Feng, Kai Yu, Yong liu, Salman Khan, WangMeng Zuo

In this paper, we focus on a particular setting of learning adaptive prompts on the fly for each test sample from an unseen new domain, which is known as test-time prompt tuning (TPT).

Data Augmentation

How Good is Google Bard's Visual Understanding? An Empirical Study on Open Challenges

1 code implementation27 Jul 2023 Haotong Qin, Ge-Peng Ji, Salman Khan, Deng-Ping Fan, Fahad Shahbaz Khan, Luc van Gool

Google's Bard has emerged as a formidable competitor to OpenAI's ChatGPT in the field of conversational AI.

Foundational Models Defining a New Era in Vision: A Survey and Outlook

1 code implementation25 Jul 2023 Muhammad Awais, Muzammal Naseer, Salman Khan, Rao Muhammad Anwer, Hisham Cholakkal, Mubarak Shah, Ming-Hsuan Yang, Fahad Shahbaz Khan

Vision systems to see and reason about the compositional nature of visual scenes are fundamental to understanding our world.

Benchmarking

Frequency Domain Adversarial Training for Robust Volumetric Medical Segmentation

1 code implementation14 Jul 2023 Asif Hanif, Muzammal Naseer, Salman Khan, Mubarak Shah, Fahad Shahbaz Khan

While recent advances in deep learning have improved the performance of volumetric medical image segmentation models, these models cannot be deployed for real-world applications immediately due to their vulnerability to adversarial attacks.

Adversarial Attack Image Segmentation +3

Self-regulating Prompts: Foundational Model Adaptation without Forgetting

2 code implementations ICCV 2023 Muhammad Uzair Khattak, Syed Talal Wasim, Muzammal Naseer, Salman Khan, Ming-Hsuan Yang, Fahad Shahbaz Khan

To the best of our knowledge, this is the first regularization framework for prompt learning that avoids overfitting by jointly attending to pre-trained model features, the training trajectory during prompting, and the textual diversity.

Prompt Engineering

PromptIR: Prompting for All-in-One Blind Image Restoration

1 code implementation22 Jun 2023 Vaishnav Potlapalli, Syed Waqas Zamir, Salman Khan, Fahad Shahbaz Khan

We present a prompt-based learning approach, PromptIR, for All-In-One image restoration that can effectively restore images from various types and levels of degradation.

Image Denoising Image Restoration +1

Learnable Weight Initialization for Volumetric Medical Image Segmentation

1 code implementation15 Jun 2023 Shahina Kunhimon, Abdelrahman Shaker, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan

Hybrid volumetric medical image segmentation models, combining the advantages of local convolution and global attention, have recently received considerable attention.

Image Segmentation Organ Segmentation +3

XrayGPT: Chest Radiographs Summarization using Medical Vision-Language Models

1 code implementation13 Jun 2023 Omkar Thawkar, Abdelrahman Shaker, Sahal Shaji Mullappilly, Hisham Cholakkal, Rao Muhammad Anwer, Salman Khan, Jorma Laaksonen, Fahad Shahbaz Khan

The latest breakthroughs in large vision-language models, such as Bard and GPT-4, have showcased extraordinary abilities in performing a wide range of tasks.

Language Modelling Large Language Model

Modulate Your Spectrum in Self-Supervised Learning

1 code implementation26 May 2023 Xi Weng, Yunhao Ni, Tengwei Song, Jie Luo, Rao Muhammad Anwer, Salman Khan, Fahad Shahbaz Khan, Lei Huang

In this work, we introduce Spectral Transformation (ST), a framework to modulate the spectrum of embedding and to seek for functions beyond whitening that can avoid dimensional collapse.

object-detection Object Detection +1

Discriminative Co-Saliency and Background Mining Transformer for Co-Salient Object Detection

1 code implementation CVPR 2023 Long Li, Junwei Han, Ni Zhang, Nian Liu, Salman Khan, Hisham Cholakkal, Rao Muhammad Anwer, Fahad Shahbaz Khan

Then, we use two types of pre-defined tokens to mine co-saliency and background information via our proposed contrast-induced pixel-to-token correlation and co-saliency token-to-token correlation modules.

Computational Efficiency Co-Salient Object Detection +3

Remote Sensing Change Detection With Transformers Trained from Scratch

1 code implementation13 Apr 2023 Mubashir Noman, Mustansar Fiaz, Hisham Cholakkal, Sanath Narayan, Rao Muhammad Anwer, Salman Khan, Fahad Shahbaz Khan

Current transformer-based change detection (CD) approaches either employ a pre-trained model trained on large-scale image classification ImageNet dataset or rely on first pre-training on another CD dataset and then fine-tuning on the target benchmark.

Change Detection Image Classification

Vita-CLIP: Video and text adaptive CLIP via Multimodal Prompting

1 code implementation CVPR 2023 Syed Talal Wasim, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan, Mubarak Shah

Through this prompting scheme, we can achieve state-of-the-art zero-shot performance on Kinetics-600, HMDB51 and UCF101 while remaining competitive in the supervised setting.

Action Recognition Video Classification +2

Burstormer: Burst Image Restoration and Enhancement Transformer

1 code implementation CVPR 2023 Akshay Dudhane, Syed Waqas Zamir, Salman Khan, Fahad Shahbaz Khan, Ming-Hsuan Yang

Unlike existing methods, the proposed alignment module not only aligns burst features but also exchanges feature information and maintains focused communication with the reference frame through the proposed reference-based feature enrichment mechanism, which facilitates handling complex motions.

Denoising Image Restoration +1

Video Instance Segmentation in an Open-World

1 code implementation3 Apr 2023 Omkar Thawakar, Sanath Narayan, Hisham Cholakkal, Rao Muhammad Anwer, Salman Khan, Jorma Laaksonen, Mubarak Shah, Fahad Shahbaz Khan

Open-world formulation relaxes the close-world static-learning assumption as follows: (a) first, it distinguishes a set of known categories as well as labels an unknown object as `unknown' and then (b) it incrementally learns the class of an unknown as and when the corresponding semantic labels become available.

Instance Segmentation Semantic Segmentation +1

SwiftFormer: Efficient Additive Attention for Transformer-based Real-time Mobile Vision Applications

2 code implementations ICCV 2023 Abdelrahman Shaker, Muhammad Maaz, Hanoona Rasheed, Salman Khan, Ming-Hsuan Yang, Fahad Shahbaz Khan

Using our proposed efficient additive attention, we build a series of models called "SwiftFormer" which achieves state-of-the-art performance in terms of both accuracy and mobile inference speed.

Bridging Precision and Confidence: A Train-Time Loss for Calibrating Object Detection

1 code implementation CVPR 2023 Muhammad Akhtar Munir, Muhammad Haris Khan, Salman Khan, Fahad Shahbaz Khan

Since the original formulation of our loss depends on the counts of true positives and false positives in a minibatch, we develop a differentiable proxy of our loss that can be used during training with other application-specific loss functions.

object-detection Object Detection

Boosting Adversarial Transferability using Dynamic Cues

no code implementations23 Feb 2023 Muzammal Naseer, Ahmad Mahmood, Salman Khan, Fahad Khan

Our temporal prompts are the result of a learnable transformation that allows optimizing for temporal gradients during an adversarial attack to fool the motion dynamics.

Adversarial Attack

Guidance Through Surrogate: Towards a Generic Diagnostic Attack

no code implementations30 Dec 2022 Muzammal Naseer, Salman Khan, Fatih Porikli, Fahad Shahbaz Khan

Recently, different adversarial training defenses are proposed that not only maintain a high clean accuracy but also show significant robustness against popular and well studied adversarial attacks such as PGD.

Adversarial Robustness

PromptCAL: Contrastive Affinity Learning via Auxiliary Prompts for Generalized Novel Category Discovery

1 code implementation CVPR 2023 Sheng Zhang, Salman Khan, Zhiqiang Shen, Muzammal Naseer, Guangyi Chen, Fahad Khan

The GNCD setting aims to categorize unlabeled training data coming from known and novel classes by leveraging the information of partially labeled known classes.

Graph Generation

Fine-tuned CLIP Models are Efficient Video Learners

1 code implementation CVPR 2023 Hanoona Rasheed, Muhammad Uzair Khattak, Muhammad Maaz, Salman Khan, Fahad Shahbaz Khan

Since training on a similar scale for videos is infeasible, recent approaches focus on the effective transfer of image-based CLIP to the video domain.

Person Image Synthesis via Denoising Diffusion Model

1 code implementation CVPR 2023 Ankan Kumar Bhunia, Salman Khan, Hisham Cholakkal, Rao Muhammad Anwer, Jorma Laaksonen, Mubarak Shah, Fahad Shahbaz Khan

In this work, we show how denoising diffusion models can be applied for high-fidelity person image synthesis with strong sample diversity and enhanced mode coverage of the learnt data distribution.

Denoising Image Generation

MaPLe: Multi-modal Prompt Learning

2 code implementations CVPR 2023 Muhammad Uzair Khattak, Hanoona Rasheed, Muhammad Maaz, Salman Khan, Fahad Shahbaz Khan

Pre-trained vision-language (V-L) models such as CLIP have shown excellent generalization ability to downstream tasks.

Prompt Engineering

CLIP model is an Efficient Continual Learner

1 code implementation6 Oct 2022 Vishal Thengane, Salman Khan, Munawar Hayat, Fahad Khan

In this work, we show that a frozen CLIP (Contrastive Language-Image Pretraining) model offers astounding continual learning performance without any fine-tuning (zero-shot evaluation).

Continual Learning Incremental Learning +1

Identification of Cognitive Workload during Surgical Tasks with Multimodal Deep Learning

no code implementations12 Sep 2022 Kaizhe Jin, Adrian Rubio-Solis, Ravi Naik, Tochukwu Onyeogulu, Amirul Islam, Salman Khan, Izzeddin Teeti, James Kinross, Daniel R Leff, Fabio Cuzzolin, George Mylonas

In this paper, a cascade of two machine learning approaches is suggested for the multimodal recognition of CWL in four different surgical task conditions.

Anatomy EEG +3

Transformers in Remote Sensing: A Survey

no code implementations2 Sep 2022 Abdulaziz Amer Aleissaee, Amandeep Kumar, Rao Muhammad Anwer, Salman Khan, Hisham Cholakkal, Gui-Song Xia, Fahad Shahbaz Khan

Deep learning-based algorithms have seen a massive popularity in different areas of remote sensing image analysis over the past decade.

AVisT: A Benchmark for Visual Object Tracking in Adverse Visibility

1 code implementation14 Aug 2022 Mubashir Noman, Wafa Al Ghallabi, Daniya Najiha, Christoph Mayer, Akshay Dudhane, Martin Danelljan, Hisham Cholakkal, Salman Khan, Luc van Gool, Fahad Shahbaz Khan

While being greatly benefiting to the tracking research, existing benchmarks do not pose the same difficulty as before with recent trackers achieving higher performance mainly due to (i) the introduction of more sophisticated transformers-based methods and (ii) the lack of diverse scenarios with adverse visibility such as, severe weather conditions, camouflage and imaging effects.

Visual Object Tracking Visual Tracking

3D Vision with Transformers: A Survey

1 code implementation8 Aug 2022 Jean Lahoud, Jiale Cao, Fahad Shahbaz Khan, Hisham Cholakkal, Rao Muhammad Anwer, Salman Khan, Ming-Hsuan Yang

The success of the transformer architecture in natural language processing has recently triggered attention in the computer vision field.

Pose Estimation

D3Former: Debiased Dual Distilled Transformer for Incremental Learning

1 code implementation25 Jul 2022 Abdelrahman Mohamed, Rushali Grandhe, K J Joseph, Salman Khan, Fahad Khan

In contrast to a recent ViT based CIL approach, our $\textrm{D}^3\textrm{Former}$ does not dynamically expand its architecture when new tasks are learned and remains suitable for a large number of incremental tasks.

Incremental Learning

Self-Distilled Vision Transformer for Domain Generalization

2 code implementations25 Jul 2022 Maryam Sultana, Muzammal Naseer, Muhammad Haris Khan, Salman Khan, Fahad Shahbaz Khan

Similar to CNNs, ViTs also struggle in out-of-distribution scenarios and the main culprit is overfitting to source domains.

Domain Generalization

Adversarial Pixel Restoration as a Pretext Task for Transferable Perturbations

1 code implementation18 Jul 2022 Hashmat Shadab Malik, Shahina K Kunhimon, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan

Our training approach is based on a min-max scheme which reduces overfitting via an adversarial objective and thus optimizes for a more generalizable surrogate model.

object-detection Object Detection +2

OpenLDN: Learning to Discover Novel Classes for Open-World Semi-Supervised Learning

1 code implementation5 Jul 2022 Mamshad Nayeem Rizve, Navid Kardan, Salman Khan, Fahad Shahbaz Khan, Mubarak Shah

In the open-world SSL problem, the objective is to recognize samples of known classes, and simultaneously detect and cluster samples belonging to novel classes present in unlabeled data.

Open-World Semi-Supervised Learning

EdgeNeXt: Efficiently Amalgamated CNN-Transformer Architecture for Mobile Vision Applications

7 code implementations21 Jun 2022 Muhammad Maaz, Abdelrahman Shaker, Hisham Cholakkal, Salman Khan, Syed Waqas Zamir, Rao Muhammad Anwer, Fahad Shahbaz Khan

Our EdgeNeXt model with 1. 3M parameters achieves 71. 2% top-1 accuracy on ImageNet-1K, outperforming MobileViT with an absolute gain of 2. 2% with 28% reduction in FLOPs.

Image Classification Object Detection +1

NTIRE 2022 Challenge on Efficient Super-Resolution: Methods and Results

2 code implementations11 May 2022 Yawei Li, Kai Zhang, Radu Timofte, Luc van Gool, Fangyuan Kong, Mingxi Li, Songwei Liu, Zongcai Du, Ding Liu, Chenhui Zhou, Jingyi Chen, Qingrui Han, Zheyuan Li, Yingqi Liu, Xiangyu Chen, Haoming Cai, Yu Qiao, Chao Dong, Long Sun, Jinshan Pan, Yi Zhu, Zhikai Zong, Xiaoxiao Liu, Zheng Hui, Tao Yang, Peiran Ren, Xuansong Xie, Xian-Sheng Hua, Yanbo Wang, Xiaozhong Ji, Chuming Lin, Donghao Luo, Ying Tai, Chengjie Wang, Zhizhong Zhang, Yuan Xie, Shen Cheng, Ziwei Luo, Lei Yu, Zhihong Wen, Qi Wu1, Youwei Li, Haoqiang Fan, Jian Sun, Shuaicheng Liu, Yuanfei Huang, Meiguang Jin, Hua Huang, Jing Liu, Xinjian Zhang, Yan Wang, Lingshun Long, Gen Li, Yuanfan Zhang, Zuowei Cao, Lei Sun, Panaetov Alexander, Yucong Wang, Minjie Cai, Li Wang, Lu Tian, Zheyuan Wang, Hongbing Ma, Jie Liu, Chao Chen, Yidong Cai, Jie Tang, Gangshan Wu, Weiran Wang, Shirui Huang, Honglei Lu, Huan Liu, Keyan Wang, Jun Chen, Shi Chen, Yuchun Miao, Zimo Huang, Lefei Zhang, Mustafa Ayazoğlu, Wei Xiong, Chengyi Xiong, Fei Wang, Hao Li, Ruimian Wen, Zhijing Yang, Wenbin Zou, Weixin Zheng, Tian Ye, Yuncheng Zhang, Xiangzhen Kong, Aditya Arora, Syed Waqas Zamir, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Dandan Gaoand Dengwen Zhouand Qian Ning, Jingzhu Tang, Han Huang, YuFei Wang, Zhangheng Peng, Haobo Li, Wenxue Guan, Shenghua Gong, Xin Li, Jun Liu, Wanjun Wang, Dengwen Zhou, Kun Zeng, Hanjiang Lin, Xinyu Chen, Jinsheng Fang

The aim was to design a network for single image super-resolution that achieved improvement of efficiency measured according to several metrics including runtime, parameters, FLOPs, activations, and memory consumption while at least maintaining the PSNR of 29. 00dB on DIV2K validation set.

Image Super-Resolution

Self-Supervised Video Object Segmentation via Cutout Prediction and Tagging

no code implementations22 Apr 2022 Jyoti Kini, Fahad Shahbaz Khan, Salman Khan, Mubarak Shah

We propose a novel self-supervised Video Object Segmentation (VOS) approach that strives to achieve better object-background discriminability for accurate object segmentation.

Object Segmentation +4

Video Instance Segmentation via Multi-scale Spatio-temporal Split Attention Transformer

1 code implementation24 Mar 2022 Omkar Thawakar, Sanath Narayan, Jiale Cao, Hisham Cholakkal, Rao Muhammad Anwer, Muhammad Haris Khan, Salman Khan, Michael Felsberg, Fahad Shahbaz Khan

When using the ResNet50 backbone, our MS-STS achieves a mask AP of 50. 1 %, outperforming the best reported results in literature by 2. 7 % and by 4. 8 % at higher overlap threshold of AP_75, while being comparable in model size and speed on Youtube-VIS 2019 val.

Instance Segmentation Semantic Segmentation +2

Transformers in Medical Imaging: A Survey

1 code implementation24 Jan 2022 Fahad Shamshad, Salman Khan, Syed Waqas Zamir, Muhammad Haris Khan, Munawar Hayat, Fahad Shahbaz Khan, Huazhu Fu

Following unprecedented success on the natural language tasks, Transformers have been successfully applied to several computer vision problems, achieving state-of-the-art results and prompting researchers to reconsider the supremacy of convolutional neural networks (CNNs) as {de facto} operators.

Image Classification Image Segmentation +6

DoodleFormer: Creative Sketch Drawing with Transformers

no code implementations6 Dec 2021 Ankan Kumar Bhunia, Salman Khan, Hisham Cholakkal, Rao Muhammad Anwer, Fahad Shahbaz Khan, Jorma Laaksonen, Michael Felsberg

Creative sketch image generation is a challenging vision problem, where the task is to generate diverse, yet realistic creative sketches possessing the unseen composition of the visual-world objects.

Image Generation

Self-supervised Video Transformer

1 code implementation CVPR 2022 Kanchana Ranasinghe, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan, Michael Ryoo

To the best of our knowledge, the proposed approach is the first to alleviate the dependency on negative samples or dedicated memory banks in Self-supervised Video Transformer (SVT).

Action Classification Action Recognition In Videos

OW-DETR: Open-world Detection Transformer

2 code implementations CVPR 2022 Akshita Gupta, Sanath Narayan, K J Joseph, Salman Khan, Fahad Shahbaz Khan, Mubarak Shah

In the case of incremental object detection, OW-DETR outperforms the state-of-the-art for all settings on PASCAL VOC.

Inductive Bias Object +3

Restormer: Efficient Transformer for High-Resolution Image Restoration

11 code implementations CVPR 2022 Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang

Since convolutional neural networks (CNNs) perform well at learning generalizable image priors from large-scale data, these models have been extensively applied to image restoration and related tasks.

Color Image Denoising Deblurring +7

International Workshop on Continual Semi-Supervised Learning: Introduction, Benchmarks and Baselines

no code implementations27 Oct 2021 Ajmal Shahbaz, Salman Khan, Mohammad Asiful Hossain, Vincenzo Lomonaco, Kevin Cannons, Zhan Xu, Fabio Cuzzolin

The aim of this paper is to formalize a new continual semi-supervised learning (CSSL) paradigm, proposed to the attention of the machine learning community via the IJCAI 2021 International Workshop on Continual Semi-Supervised Learning (CSSL-IJCAI), with the aim of raising field awareness about this problem and mobilizing its effort in this direction.

Activity Recognition Crowd Counting

Burst Image Restoration and Enhancement

1 code implementation CVPR 2022 Akshay Dudhane, Syed Waqas Zamir, Salman Khan, Fahad Shahbaz Khan, Ming-Hsuan Yang

Our central idea is to create a set of pseudo-burst features that combine complementary information from all the input burst frames to seamlessly exchange information.

Burst Image Super-Resolution Denoising +3

Tensor Pooling Driven Instance Segmentation Framework for Baggage Threat Recognition

1 code implementation22 Aug 2021 Taimur Hassan, Samet Akcay, Mohammed Bennamoun, Salman Khan, Naoufel Werghi

Furthermore, to the best of our knowledge, this is the first contour instance segmentation framework that leverages multi-scale information to recognize cluttered and concealed contraband data from the colored and grayscale security X-ray imagery.

Instance Segmentation Segmentation +1

Discriminative Region-based Multi-Label Zero-Shot Learning

1 code implementation ICCV 2021 Sanath Narayan, Akshita Gupta, Salman Khan, Fahad Shahbaz Khan, Ling Shao, Mubarak Shah

We note that the best existing multi-label ZSL method takes a shared approach towards attending to region features with a common set of attention maps for all the classes.

Image Retrieval Multi-label zero-shot learning

Learning Discriminative Representations for Multi-Label Image Recognition

no code implementations23 Jul 2021 Mohammed Hassanin, Ibrahim Radwan, Salman Khan, Murat Tahtali

Multi-label recognition is a fundamental, and yet is a challenging task in computer vision.

On Improving Adversarial Transferability of Vision Transformers

3 code implementations ICLR 2022 Muzammal Naseer, Kanchana Ranasinghe, Salman Khan, Fahad Shahbaz Khan, Fatih Porikli

(ii) Token Refinement: We then propose to refine the tokens to further enhance the discriminative capacity at each block of ViT.

Adversarial Attack

Intriguing Properties of Vision Transformers

1 code implementation NeurIPS 2021 Muzammal Naseer, Kanchana Ranasinghe, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang

We show and analyze the following intriguing properties of ViT: (a) Transformers are highly robust to severe occlusions, perturbations and domain shifts, e. g., retain as high as 60% top-1 accuracy on ImageNet even after randomly occluding 80% of the image content.

Few-Shot Learning Semantic Segmentation

Rich Semantics Improve Few-shot Learning

no code implementations26 Apr 2021 Mohamed Afham, Salman Khan, Muhammad Haris Khan, Muzammal Naseer, Fahad Shahbaz Khan

Human learning benefits from multi-modal inputs that often appear as rich semantics (e. g., description of an object's attributes while learning about it).

 Ranked #1 on Few-Shot Image Classification on Oxford 102 Flower (using extra training data)

Few-Shot Image Classification Few-Shot Learning

Spatiotemporal Deformable Scene Graphs for Complex Activity Detection

no code implementations16 Apr 2021 Salman Khan, Fabio Cuzzolin

We also contribute fresh temporal complex activity annotation for the recently released ROAD autonomous driving and SARAS-ESAD surgical action datasets and show the adaptability of our framework to different domains.

Action Detection Activity Detection +3

Handwriting Transformers

1 code implementation ICCV 2021 Ankan Kumar Bhunia, Salman Khan, Hisham Cholakkal, Rao Muhammad Anwer, Fahad Shahbaz Khan, Mubarak Shah

We propose a novel transformer-based styled handwritten text image generation approach, HWT, that strives to learn both style-content entanglement as well as global and local writing style patterns.

Image Generation Text Generation

On Generating Transferable Targeted Perturbations

3 code implementations ICCV 2021 Muzammal Naseer, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Fatih Porikli

To this end, we propose a new objective function that not only aligns the global distributions of source and target images, but also matches the local neighbourhood structure between the two domains.

Orthogonal Projection Loss

1 code implementation ICCV 2021 Kanchana Ranasinghe, Muzammal Naseer, Munawar Hayat, Salman Khan, Fahad Shahbaz Khan

The CE loss encourages features of a class to have a higher projection score on the true class-vector compared to the negative classes.

Domain Generalization Few-Shot Learning

ROAD: The ROad event Awareness Dataset for Autonomous Driving

2 code implementations23 Feb 2021 Gurkirt Singh, Stephen Akrigg, Manuele Di Maio, Valentina Fontana, Reza Javanmard Alitappeh, Suman Saha, Kossar Jeddisaravi, Farzad Yousefi, Jacob Culley, Tom Nicholson, Jordan Omokeowa, Salman Khan, Stanislao Grazioso, Andrew Bradley, Giuseppe Di Gironimo, Fabio Cuzzolin

We also report the performance on the ROAD tasks of Slowfast and YOLOv5 detectors, as well as that of the winners of the ICCV2021 ROAD challenge, which highlight the challenges faced by situation awareness in autonomous driving.

Action Detection Activity Detection +4

Robust normalizing flows using Bernstein-type polynomials

no code implementations6 Feb 2021 Sameera Ramasinghe, Kasun Fernando, Salman Khan, Nick Barnes

Modeling real-world distributions can often be challenging due to sample data that are subjected to perturbations, e. g., instrumentation errors, or added random noise.

Vocal Bursts Type Prediction

Multi-Stage Progressive Image Restoration

7 code implementations CVPR 2021 Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang, Ling Shao

At each stage, we introduce a novel per-pixel adaptive design that leverages in-situ supervised attention to reweight the local features.

Deblurring Image Deblurring +3

Generative Multi-Label Zero-Shot Learning

1 code implementation27 Jan 2021 Akshita Gupta, Sanath Narayan, Salman Khan, Fahad Shahbaz Khan, Ling Shao, Joost Van de Weijer

Nevertheless, computing reliable attention maps for unseen classes during inference in a multi-label setting is still a challenge.

Attribute Generative Adversarial Network +3

Transformers in Vision: A Survey

no code implementations4 Jan 2021 Salman Khan, Muzammal Naseer, Munawar Hayat, Syed Waqas Zamir, Fahad Shahbaz Khan, Mubarak Shah

Astounding results from Transformer models on natural language tasks have intrigued the vision community to study their application to computer vision problems.

Action Recognition Colorization +10

Rethinking conditional GAN training: An approach using geometrically structured latent manifolds

1 code implementation NeurIPS 2021 Sameera Ramasinghe, Moshiur Farazi, Salman Khan, Nick Barnes, Stephen Gould

Conditional GANs (cGAN), in their rudimentary form, suffer from critical drawbacks such as the lack of diversity in generated outputs and distortion between the latent and output manifolds.

Image-to-Image Translation Translation

Synthesizing the Unseen for Zero-shot Object Detection

2 code implementations19 Oct 2020 Nasir Hayat, Munawar Hayat, Shafin Rahman, Salman Khan, Syed Waqas Zamir, Fahad Shahbaz Khan

The existing zero-shot detection approaches project visual features to the semantic domain for seen objects, hoping to map unseen objects to their corresponding semantics during inference.

Generalized Zero-Shot Object Detection Object +1

Meta-learning the Learning Trends Shared Across Tasks

no code implementations19 Oct 2020 Jathushan Rajasegaran, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Mubarak Shah

This demonstrates their ability to acquire transferable knowledge, a capability that is central to human learning.

Meta-Learning

Task-Driven Learning of Contour Integration Responses in a V1 Model

no code implementations NeurIPS Workshop SVRHM 2020 Salman Khan, Alexander Wong, Bryan P. Tripp

Under difficult viewing conditions, the brain's visual system uses a variety of modulatory techniques to augment its core feed-forward signals.

Conditional Generative Modeling via Learning the Latent Space

no code implementations ICLR 2021 Sameera Ramasinghe, Kanchana Ranasinghe, Salman Khan, Nick Barnes, Stephen Gould

Although deep learning has achieved appealing results on several machine learning tasks, most of the models are deterministic at inference, limiting their application to single-modal settings.

Attention Guided Semantic Relationship Parsing for Visual Question Answering

no code implementations5 Oct 2020 Moshiur Farazi, Salman Khan, Nick Barnes

Humans explain inter-object relationships with semantic labels that demonstrate a high-level understanding required to perform complex Vision-Language tasks such as Visual Question Answering (VQA).

Object Question Answering +1

Stylized Adversarial Defense

1 code implementation29 Jul 2020 Muzammal Naseer, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Fatih Porikli

In contrast to existing adversarial training methods that only use class-boundary information (e. g., using a cross-entropy loss), we propose to exploit additional information from the feature space to craft stronger adversaries that are in turn used to learn a robust model.

Adversarial Defense

Self-supervised Knowledge Distillation for Few-shot Learning

1 code implementation17 Jun 2020 Jathushan Rajasegaran, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Mubarak Shah

Our experiments show that, even in the first stage, self-supervision can outperform current state-of-the-art methods, with further gains achieved by our second stage distillation process.

Few-Shot Image Classification Few-Shot Learning +2

A Self-supervised Approach for Adversarial Robustness

2 code implementations CVPR 2020 Muzammal Naseer, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Fatih Porikli

Adversarial examples can cause catastrophic mistakes in Deep Neural Network (DNNs) based vision systems e. g., for classification, segmentation and object detection.

Adversarial Robustness General Classification +3

iTAML: An Incremental Task-Agnostic Meta-learning Approach

1 code implementation CVPR 2020 Jathushan Rajasegaran, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Mubarak Shah

In this paper, we hypothesize this problem can be avoided by learning a set of generalized parameters, that are neither specific to old nor new tasks.

Incremental Learning Meta-Learning

CycleISP: Real Image Restoration via Improved Data Synthesis

8 code implementations CVPR 2020 Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang, Ling Shao

This is mainly because the AWGN is not adequate for modeling the real camera noise which is signal-dependent and heavily transformed by the camera imaging pipeline.

Ranked #9 on Image Denoising on DND (using extra training data)

Image Denoising Image Restoration

Any-Shot Object Detection

no code implementations16 Mar 2020 Shafin Rahman, Salman Khan, Nick Barnes, Fahad Shahbaz Khan

Any-shot detection offers unique challenges compared to conventional novel object detection such as, a high imbalance between unseen, few-shot and seen object classes, susceptibility to forget base-training while learning novel classes and distinguishing novel classes from the background.

Novel Object Detection Object +2

Learning Enriched Features for Real Image Restoration and Enhancement

12 code implementations ECCV 2020 Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang, Ling Shao

With the goal of recovering high-quality image content from its degraded version, image restoration enjoys numerous applications, such as in surveillance, computational photography, medical imaging, and remote sensing.

Image Denoising Image Enhancement +2

Fine-grained Recognition: Accounting for Subtle Differences between Similar Classes

no code implementations14 Dec 2019 Guolei Sun, Hisham Cholakkal, Salman Khan, Fahad Shahbaz Khan, Ling Shao

The main requisite for fine-grained recognition task is to focus on subtle discriminative details that make the subordinate classes different from each other.

Fine-Grained Image Classification

Towards Partial Supervision for Generic Object Counting in Natural Scenes

1 code implementation13 Dec 2019 Hisham Cholakkal, Guolei Sun, Salman Khan, Fahad Shahbaz Khan, Ling Shao, Luc van Gool

Our RLC framework further reduces the annotation cost arising from large numbers of object categories in a dataset by only using lower-count supervision for a subset of categories and class-labels for the remaining ones.

Image Classification Image-level Supervised Instance Segmentation +3

Spectral-GANs for High-Resolution 3D Point-cloud Generation

1 code implementation4 Dec 2019 Sameera Ramasinghe, Salman Khan, Nick Barnes, Stephen Gould

Point-clouds are a popular choice for vision and graphics tasks due to their accurate shape description and direct acquisition from range-scanners.

Generative Adversarial Network Point Cloud Generation +1

Representation Learning on Unit Ball with 3D Roto-Translational Equivariance

no code implementations30 Nov 2019 Sameera Ramasinghe, Salman Khan, Nick Barnes, Stephen Gould

In this work, we propose a novel `\emph{volumetric convolution}' operation that can effectively model and convolve arbitrary functions in $\mathbb{B}^3$.

3D Object Recognition Representation Learning

Understanding More about Human and Machine Attention in Deep Neural Networks

no code implementations20 Jun 2019 Qiuxia Lai, Salman Khan, Yongwei Nie, Jianbing Shen, Hanqiu Sun, Ling Shao

With three example computer vision tasks, diverse representative backbones, and famous architectures, corresponding real human gaze data, and systematically conducted large-scale quantitative studies, we quantify the consistency between artificial attention and human visual attention and offer novel insights into existing artificial attention mechanisms by giving preliminary answers to several key questions related to human and artificial attention mechanisms.

Fine-Grained Image Classification Semantic Segmentation +1

An Adaptive Random Path Selection Approach for Incremental Learning

1 code implementation3 Jun 2019 Jathushan Rajasegaran, Munawar Hayat, Salman Khan, Fahad Shahbaz Khan, Ling Shao, Ming-Hsuan Yang

In a conventional supervised learning setting, a machine learning model has access to examples of all object classes that are desired to be recognized during the inference stage.

Incremental Learning Knowledge Distillation +1

iSAID: A Large-scale Dataset for Instance Segmentation in Aerial Images

3 code implementations30 May 2019 Syed Waqas Zamir, Aditya Arora, Akshita Gupta, Salman Khan, Guolei Sun, Fahad Shahbaz Khan, Fan Zhu, Ling Shao, Gui-Song Xia, Xiang Bai

Compared to existing small-scale aerial image based instance segmentation datasets, iSAID contains 15$\times$ the number of object categories and 5$\times$ the number of instances.

Instance Segmentation Object +4

A Deep Journey into Super-resolution: A survey

2 code implementations16 Apr 2019 Saeed Anwar, Salman Khan, Nick Barnes

Deep convolutional networks based super-resolution is a fast-growing field with numerous practical applications.

Image Super-Resolution

Learning Digital Camera Pipeline for Extreme Low-Light Imaging

no code implementations11 Apr 2019 Syed Waqas Zamir, Aditya Arora, Salman Khan, Fahad Shahbaz Khan, Ling Shao

In low-light conditions, a conventional camera imaging pipeline produces sub-optimal images that are usually dark and noisy due to a low photon count and low signal-to-noise ratio (SNR).

Adversarial Defense by Restricting the Hidden Space of Deep Neural Networks

1 code implementation ICCV 2019 Aamir Mustafa, Salman Khan, Munawar Hayat, Roland Goecke, Jianbing Shen, Ling Shao

Deep neural networks are vulnerable to adversarial attacks, which can fool them by adding minuscule perturbations to the input images.

Adversarial Defense

Striking the Right Balance with Uncertainty

no code implementations CVPR 2019 Salman Khan, Munawar Hayat, Waqas Zamir, Jianbing Shen, Ling Shao

Rare classes tend to get a concentrated representation in the classification space which hampers the generalization of learned boundaries to new test examples.

Attribute Classification +3

Polarity Loss for Zero-shot Object Detection

3 code implementations22 Nov 2018 Shafin Rahman, Salman Khan, Nick Barnes

This setting gives rise to the need for correct alignment between visual and semantic concepts, so that the unseen objects can be identified using only their semantic attributes.

Generalized Zero-Shot Object Detection Metric Learning +4

A Context-aware Capsule Network for Multi-label Classification

no code implementations15 Oct 2018 Sameera Ramasinghe, C. D. Athuralya, Salman Khan

Recently proposed Capsule Network is a brain inspired architecture that brings a new paradigm to deep learning by modelling input domain variations through vector based representations.

Classification General Classification +1

Feature Affinity based Pseudo Labeling for Semi-supervised Person Re-identification

no code implementations16 May 2018 Guodong Ding, Shanshan Zhang, Salman Khan, Zhenmin Tang, Jian Zhang, Fatih Porikli

Our approach measures the affinity of unlabeled samples with the underlying clusters of labeled data samples using the intermediate feature representations from deep networks.

Data Augmentation Representation Learning +1

Deep Multiple Instance Learning for Zero-shot Image Tagging

1 code implementation16 Mar 2018 Shafin Rahman, Salman Khan

In-line with the success of deep learning on traditional recognition problem, several end-to-end deep models for zero-shot recognition have been proposed in the literature.

Multiple Instance Learning Zero-Shot Learning

Zero-Shot Object Detection: Learning to Simultaneously Recognize and Localize Novel Concepts

1 code implementation16 Mar 2018 Shafin Rahman, Salman Khan, Fatih Porikli

We hypothesize that this setting is ill-suited for real-world applications where unseen objects appear only as a part of a complex scene, warranting both the `recognition' and `localization' of an unseen category.

Clustering Novel Concepts +3

Regularization of Deep Neural Networks with Spectral Dropout

no code implementations23 Nov 2017 Salman Khan, Munawar Hayat, Fatih Porikli

We cast the proposed approach in the form of regular Convolutional Neural Network (CNN) weight layers using a decorrelation transform with fixed basis functions.

Let Features Decide for Themselves: Feature Mask Network for Person Re-identification

no code implementations20 Nov 2017 Guodong Ding, Salman Khan, Zhenmin Tang, Fatih Porikli

Person re-identification aims at establishing the identity of a pedestrian from a gallery that contains images of multiple people obtained from a multi-camera system.

Person Re-Identification Retrieval

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