Search Results for author: Junqing Yu

Found 16 papers, 10 papers with code

Attacking Transformers with Feature Diversity Adversarial Perturbation

no code implementations10 Mar 2024 Chenxing Gao, Hang Zhou, Junqing Yu, Yuteng Ye, Jiale Cai, Junle Wang, Wei Yang

Understanding the mechanisms behind Vision Transformer (ViT), particularly its vulnerability to adversarial perturba tions, is crucial for addressing challenges in its real-world applications.

AMD:Anatomical Motion Diffusion with Interpretable Motion Decomposition and Fusion

no code implementations20 Dec 2023 Beibei Jing, Youjia Zhang, Zikai Song, Junqing Yu, Wei Yang

Generating realistic human motion sequences from text descriptions is a challenging task that requires capturing the rich expressiveness of both natural language and human motion. Recent advances in diffusion models have enabled significant progress in human motion synthesis. However, existing methods struggle to handle text inputs that describe complex or long motions. In this paper, we propose the Adaptable Motion Diffusion (AMD) model, which leverages a Large Language Model (LLM) to parse the input text into a sequence of concise and interpretable anatomical scripts that correspond to the target motion. This process exploits the LLM's ability to provide anatomical guidance for complex motion synthesis. We then devise a two-branch fusion scheme that balances the influence of the input text and the anatomical scripts on the inverse diffusion process, which adaptively ensures the semantic fidelity and diversity of the synthesized motion. Our method can effectively handle texts with complex or long motion descriptions, where existing methods often fail.

Language Modelling Large Language Model

Optimized View and Geometry Distillation from Multi-view Diffuser

no code implementations11 Dec 2023 Youjia Zhang, Zikai Song, Junqing Yu, Yawei Luo, Wei Yang

We leverage the rendered views from the optimized radiance field as the basis and develop a two-step specialization process of a 2D diffusion model, which is adept at conducting object-specific denoising and generating high-quality multi-view images.

Denoising

Fine-grained Appearance Transfer with Diffusion Models

1 code implementation27 Nov 2023 Yuteng Ye, Guanwen Li, Hang Zhou, Cai Jiale, Junqing Yu, Yawei Luo, Zikai Song, Qilong Xing, Youjia Zhang, Wei Yang

A pivotal aspect of our approach is the strategic use of the predicted $x_0$ space by diffusion models within the latent space of diffusion processes.

Image-to-Image Translation

Progressive Text-to-Image Diffusion with Soft Latent Direction

1 code implementation18 Sep 2023 Yuteng Ye, Jiale Cai, Hang Zhou, Guanwen Li, Youjia Zhang, Zikai Song, Chenxing Gao, Junqing Yu, Wei Yang

In spite of the rapidly evolving landscape of text-to-image generation, the synthesis and manipulation of multiple entities while adhering to specific relational constraints pose enduring challenges.

Language Modelling Large Language Model +1

NeMF: Inverse Volume Rendering with Neural Microflake Field

no code implementations ICCV 2023 Youjia Zhang, Teng Xu, Junqing Yu, Yuteng Ye, Junle Wang, Yanqing Jing, Jingyi Yu, Wei Yang

Recovering the physical attributes of an object's appearance from its images captured under an unknown illumination is challenging yet essential for photo-realistic rendering.

Dual Memory Units with Uncertainty Regulation for Weakly Supervised Video Anomaly Detection

1 code implementation10 Feb 2023 Hang Zhou, Junqing Yu, Wei Yang

To address this issue, we propose an Uncertainty Regulated Dual Memory Units (UR-DMU) model to learn both the representations of normal data and discriminative features of abnormal data.

Anomaly Detection Video Anomaly Detection

Compact Transformer Tracker with Correlative Masked Modeling

1 code implementation26 Jan 2023 Zikai Song, Run Luo, Junqing Yu, Yi-Ping Phoebe Chen, Wei Yang

Transformer framework has been showing superior performances in visual object tracking for its great strength in information aggregation across the template and search image with the well-known attention mechanism.

Visual Object Tracking

Dynamic Feature Pruning and Consolidation for Occluded Person Re-Identification

1 code implementation27 Nov 2022 Yuteng Ye, Hang Zhou, Jiale Cai, Chenxing Gao, Youjia Zhang, Junle Wang, Qiang Hu, Junqing Yu, Wei Yang

The framework mainly consists of a sparse encoder, a multi-view feature mathcing module, and a feature consolidation decoder.

Person Re-Identification

Transformer Tracking with Cyclic Shifting Window Attention

1 code implementation CVPR 2022 Zikai Song, Junqing Yu, Yi-Ping Phoebe Chen, Wei Yang

Transformer architecture has been showing its great strength in visual object tracking, for its effective attention mechanism.

Object Visual Object Tracking

NeReF: Neural Refractive Field for Fluid Surface Reconstruction and Implicit Representation

no code implementations8 Mar 2022 Ziyu Wang, Wei Yang, Junming Cao, Lan Xu, Junqing Yu, Jingyi Yu

We present a novel neural refractive field(NeReF) to recover wavefront of transparent fluids by simultaneously estimating the surface position and normal of the fluid front.

Surface Reconstruction

Significance-aware Information Bottleneck for Domain Adaptive Semantic Segmentation

no code implementations ICCV 2019 Yawei Luo, Ping Liu, Tao Guan, Junqing Yu, Yi Yang

For unsupervised domain adaptation problems, the strategy of aligning the two domains in latent feature space through adversarial learning has achieved much progress in image classification, but usually fails in semantic segmentation tasks in which the latent representations are overcomplex.

Image Classification Segmentation +2

Every Node Counts: Self-Ensembling Graph Convolutional Networks for Semi-Supervised Learning

1 code implementation26 Sep 2018 Yawei Luo, Tao Guan, Junqing Yu, Ping Liu, Yi Yang

To capitalize on the information from unlabeled nodes to boost the training for GCN, we propose a novel framework named Self-Ensembling GCN (SEGCN), which marries GCN with Mean Teacher - another powerful model in semi-supervised learning.

General Classification Node Classification

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