Search Results for author: Jeya Maria Jose Valanarasu

Found 26 papers, 16 papers with code

Diffscaler: Enhancing the Generative Prowess of Diffusion Transformers

no code implementations15 Apr 2024 Nithin Gopalakrishnan Nair, Jeya Maria Jose Valanarasu, Vishal M. Patel

As these parameters are independent, a single diffusion model with these task-specific parameters can be used to perform multiple tasks simultaneously.

Image Generation Unconditional Image Generation

MaxFusion: Plug&Play Multi-Modal Generation in Text-to-Image Diffusion Models

no code implementations15 Apr 2024 Nithin Gopalakrishnan Nair, Jeya Maria Jose Valanarasu, Vishal M Patel

Large diffusion-based Text-to-Image (T2I) models have shown impressive generative powers for text-to-image generation as well as spatially conditioned image generation.

Text-to-Image Generation

CheXagent: Towards a Foundation Model for Chest X-Ray Interpretation

no code implementations22 Jan 2024 Zhihong Chen, Maya Varma, Jean-Benoit Delbrouck, Magdalini Paschali, Louis Blankemeier, Dave Van Veen, Jeya Maria Jose Valanarasu, Alaa Youssef, Joseph Paul Cohen, Eduardo Pontes Reis, Emily B. Tsai, Andrew Johnston, Cameron Olsen, Tanishq Mathew Abraham, Sergios Gatidis, Akshay S. Chaudhari, Curtis Langlotz

However, developing FMs that can accurately interpret CXRs is challenging due to the (1) limited availability of large-scale vision-language datasets in the medical image domain, (2) lack of vision and language encoders that can capture the complexities of medical data, and (3) absence of evaluation frameworks for benchmarking the abilities of FMs on CXR interpretation.

Benchmarking Fairness +2

ReBotNet: Fast Real-time Video Enhancement

no code implementations23 Mar 2023 Jeya Maria Jose Valanarasu, Rahul Garg, Andeep Toor, Xin Tong, Weijuan Xi, Andreas Lugmayr, Vishal M. Patel, Anne Menini

The first branch learns spatio-temporal features by tokenizing the input frames along the spatial and temporal dimensions using a ConvNext-based encoder and processing these abstract tokens using a bottleneck mixer.

Video Enhancement Video Restoration

CLIP goes 3D: Leveraging Prompt Tuning for Language Grounded 3D Recognition

1 code implementation20 Mar 2023 Deepti Hegde, Jeya Maria Jose Valanarasu, Vishal M. Patel

Attempting to train the visual and text encoder to account for this shift results in catastrophic forgetting and a notable decrease in performance.

Retrieval Scene Understanding

Orientation-guided Graph Convolutional Network for Bone Surface Segmentation

no code implementations16 Jun 2022 Aimon Rahman, Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu, Ilker Hacihaliloglu, Vishal M Patel

Due to imaging artifacts and low signal-to-noise ratio in ultrasound images, automatic bone surface segmentation networks often produce fragmented predictions that can hinder the success of ultrasound-guided computer-assisted surgical procedures.

Simultaneous Bone and Shadow Segmentation Network using Task Correspondence Consistency

no code implementations16 Jun 2022 Aimon Rahman, Jeya Maria Jose Valanarasu, Ilker Hacihaliloglu, Vishal M Patel

Segmenting both bone surface and the corresponding acoustic shadow are fundamental tasks in ultrasound (US) guided orthopedic procedures.

Segmentation

SAR Despeckling Using Overcomplete Convolutional Networks

1 code implementation31 May 2022 Malsha V. Perera, Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu, Vishal M. Patel

We show that the proposed network improves despeckling performance compared to recent despeckling methods on synthetic and real SAR images.

Target and Task specific Source-Free Domain Adaptive Image Segmentation

1 code implementation29 Mar 2022 Vibashan VS, Jeya Maria Jose Valanarasu, Vishal M. Patel

In task-specific adaptation, we exploit the enhanced pseudo-labels using a student-teacher framework to effectively learn segmentation on the target domain.

Denoising Image Segmentation +4

Interactive Portrait Harmonization

no code implementations15 Mar 2022 Jeya Maria Jose Valanarasu, He Zhang, Jianming Zhang, Yilin Wang, Zhe Lin, Jose Echevarria, Yinglan Ma, Zijun Wei, Kalyan Sunkavalli, Vishal M. Patel

To enable flexible interaction between user and harmonization, we introduce interactive harmonization, a new setting where the harmonization is performed with respect to a selected \emph{region} in the reference image instead of the entire background.

Image Harmonization

On-the-Fly Test-time Adaptation for Medical Image Segmentation

1 code implementation10 Mar 2022 Jeya Maria Jose Valanarasu, Pengfei Guo, Vibashan VS, Vishal M. Patel

During test-time, the model takes in just the new test image and generates a domain code to adapt the features of source model according to the test data.

Image Segmentation Medical Image Segmentation +2

UNeXt: MLP-based Rapid Medical Image Segmentation Network

2 code implementations9 Mar 2022 Jeya Maria Jose Valanarasu, Vishal M. Patel

Using tokenized MLPs in latent space reduces the number of parameters and computational complexity while being able to result in a better representation to help segmentation.

Image Segmentation Medical Image Segmentation +2

Transformer-based SAR Image Despeckling

1 code implementation23 Jan 2022 Malsha V. Perera, Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu, Vishal M. Patel

Synthetic Aperture Radar (SAR) images are usually degraded by a multiplicative noise known as speckle which makes processing and interpretation of SAR images difficult.

Sar Image Despeckling

Fine-Context Shadow Detection using Shadow Removal

no code implementations20 Sep 2021 Jeya Maria Jose Valanarasu, Vishal M. Patel

First, we propose a Fine Context-aware Shadow Detection Network (FCSD-Net), where we constraint the receptive field size and focus on low-level features to learn fine context features better.

Shadow Detection And Removal Shadow Removal

SPIN Road Mapper: Extracting Roads from Aerial Images via Spatial and Interaction Space Graph Reasoning for Autonomous Driving

1 code implementation16 Sep 2021 Wele Gedara Chaminda Bandara, Jeya Maria Jose Valanarasu, Vishal M. Patel

Using just convolution neural networks (ConvNets) for this problem is not effective as it is inefficient at capturing distant dependencies between road segments in the image which is essential to extract road connectivity.

Autonomous Driving Autonomous Navigation +1

Image Fusion Transformer

1 code implementation19 Jul 2021 Vibashan VS, Jeya Maria Jose Valanarasu, Poojan Oza, Vishal M. Patel

Furthermore, we show the effectiveness of the proposed ST fusion strategy with an ablation analysis.

Over-and-Under Complete Convolutional RNN for MRI Reconstruction

no code implementations16 Jun 2021 Pengfei Guo, Jeya Maria Jose Valanarasu, Puyang Wang, Jinyuan Zhou, Shanshan Jiang, Vishal M. Patel

Reconstructing magnetic resonance (MR) images from undersampled data is a challenging problem due to various artifacts introduced by the under-sampling operation.

MRI Reconstruction

Medical Transformer: Gated Axial-Attention for Medical Image Segmentation

2 code implementations21 Feb 2021 Jeya Maria Jose Valanarasu, Poojan Oza, Ilker Hacihaliloglu, Vishal M. Patel

The proposed Medical Transformer (MedT) is evaluated on three different medical image segmentation datasets and it is shown that it achieves better performance than the convolutional and other related transformer-based architectures.

Image Segmentation Medical Image Segmentation +2

Overcomplete Representations Against Adversarial Videos

1 code implementation8 Dec 2020 Shao-Yuan Lo, Jeya Maria Jose Valanarasu, Vishal M. Patel

Adversarial robustness of deep neural networks is an extensively studied problem in the literature and various methods have been proposed to defend against adversarial images.

Adversarial Robustness Video Recognition

Overcomplete Deep Subspace Clustering Networks

1 code implementation16 Nov 2020 Jeya Maria Jose Valanarasu, Vishal M. Patel

This method uses undercomplete representations of the input data which makes it not so robust and more dependent on pre-training.

Clustering

Exploring Overcomplete Representations for Single Image Deraining using CNNs

1 code implementation20 Oct 2020 Rajeev Yasarla, Jeya Maria Jose Valanarasu, Vishal M. Patel

Removal of rain streaks from a single image is an extremely challenging problem since the rainy images often contain rain streaks of different size, shape, direction and density.

Single Image Deraining

KiU-Net: Overcomplete Convolutional Architectures for Biomedical Image and Volumetric Segmentation

1 code implementation4 Oct 2020 Jeya Maria Jose Valanarasu, Vishwanath A. Sindagi, Ilker Hacihaliloglu, Vishal M. Patel

To overcome this issue, we propose using an overcomplete convolutional architecture where we project our input image into a higher dimension such that we constrain the receptive field from increasing in the deep layers of the network.

3D Medical Imaging Segmentation Brain Tumor Segmentation +6

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