Search Results for author: Yongyong Chen

Found 23 papers, 7 papers with code

Vision-Language Gradient Descent-driven All-in-One Deep Unfolding Networks

no code implementations21 Mar 2025 Haijin Zeng, Xiangming Wang, Yongyong Chen, Jingyong Su, Jie Liu

Dynamic image degradations, including noise, blur and lighting inconsistencies, pose significant challenges in image restoration, often due to sensor limitations or adverse environmental conditions.

All Image Restoration +1

Binarized Mamba-Transformer for Lightweight Quad Bayer HybridEVS Demosaicing

1 code implementation20 Mar 2025 Shiyang Zhou, Haijin Zeng, Yunfan Lu, Tong Shao, Ke Tang, Yongyong Chen, Jie Liu, Jingyong Su

Quad Bayer demosaicing is the central challenge for enabling the widespread application of Hybrid Event-based Vision Sensors (HybridEVS).

Computational Efficiency Demosaicking +2

Generative Model-Assisted Demosaicing for Cross-multispectral Cameras

no code implementations4 Mar 2025 Jiahui Luo, Kai Feng, Haijin Zeng, Yongyong Chen

Specifically, our approach consists of three steps: (1) Pre-Training step: training the end-to-end neural network on a large amount of simulated data; (2) Pseudo-Pairing step: generating pseudo-labels of real target data using the self-supervised generative model; (3) Fine-Tuning step: fine-tuning the pre-trained model on the pseudo data pairs obtained in (2).

Demosaicking

OTLRM: Orthogonal Learning-based Low-Rank Metric for Multi-Dimensional Inverse Problems

1 code implementation15 Dec 2024 Xiangming Wang, Haijin Zeng, Jiaoyang Chen, Sheng Liu, Yongyong Chen, Guoqing Chao

The TNN-regularized optimization problem is solved by the singular value thresholding (SVT) operator, which leverages the t-SVD framework to obtain the low-rank tensor.

Image Denoising

Random Sampling for Diffusion-based Adversarial Purification

1 code implementation28 Nov 2024 Jiancheng Zhang, Peiran Dong, Yongyong Chen, Yin-Ping Zhao, Song Guo

Remarkably, under strong attack, our DiffAP even achieves a more than 20% robustness advantage with 10$\times$ sampling acceleration.

Adversarial Purification Denoising

MambaSCI: Efficient Mamba-UNet for Quad-Bayer Patterned Video Snapshot Compressive Imaging

no code implementations18 Oct 2024 Zhenghao Pan, Haijin Zeng, JieZhang Cao, Yongyong Chen, Kai Zhang, Yong Xu

To address this challenge, we propose the MambaSCI method, which leverages the Mamba and UNet architectures for efficient reconstruction of quad-Bayer patterned color video SCI.

Demosaicking Mamba

Cross-Scan Mamba with Masked Training for Robust Spectral Imaging

no code implementations1 Aug 2024 Wenzhe Tian, Haijin Zeng, Yin-Ping Zhao, Yongyong Chen, Zhen Wang, Xuelong Li

Current CNN-based methods are limited in modeling long-range dependencies, while Transformer-based models face high computational complexity.

Computational Efficiency Mamba

LLEMamba: Low-Light Enhancement via Relighting-Guided Mamba with Deep Unfolding Network

no code implementations3 Jun 2024 Xuanqi Zhang, Haijin Zeng, Jinwang Pan, Qiangqiang Shen, Yongyong Chen

Transformer-based low-light enhancement methods have yielded promising performance by effectively capturing long-range dependencies in a global context.

Mamba

Improving Spectral Snapshot Reconstruction with Spectral-Spatial Rectification

1 code implementation CVPR 2024 Jiancheng Zhang, Haijin Zeng, Yongyong Chen, Dengxiu Yu, Yin-Ping Zhao

How to effectively utilize the spectral and spatial characteristics of Hyperspectral Image (HSI) is always a key problem in spectral snapshot reconstruction.

Spectral Reconstruction

Fine-Grained Bipartite Concept Factorization for Clustering

no code implementations CVPR 2024 Chong Peng, Pengfei Zhang, Yongyong Chen, Zhao Kang, Chenglizhao Chen, Qiang Cheng

In this paper we propose a novel concept factorization method that seeks factor matrices using a cross-order positive semi-definite neighbor graph which provides comprehensive and complementary neighbor information of the data.

Clustering graph partitioning

DiffSCI: Zero-Shot Snapshot Compressive Imaging via Iterative Spectral Diffusion Model

1 code implementation CVPR 2024 Zhenghao Pan, Haijin Zeng, JieZhang Cao, Kai Zhang, Yongyong Chen

Specifically, firstly, we employ a pre-trained diffusion model, which has been trained on a substantial corpus of RGB images, as the generative denoiser within the Plug-and-Play framework for the first time.

Denoising

MSFA-Frequency-Aware Transformer for Hyperspectral Images Demosaicing

no code implementations23 Mar 2023 Haijin Zeng, Kai Feng, Shaoguang Huang, JieZhang Cao, Yongyong Chen, Hongyan zhang, Hiep Luong, Wilfried Philips

The advantage of Maformer is that it can leverage the MSFA information and non-local dependencies present in the data.

Demosaicking

How Image Generation Helps Visible-to-Infrared Person Re-Identification?

no code implementations4 Oct 2022 Honghu Pan, Yongyong Chen, Yunqi He, Xin Li, Zhenyu He

To this end, we propose Flow2Flow, a unified framework that could jointly achieve training sample expansion and cross-modality image generation for V2I person ReID.

Image Generation Person Re-Identification

Towards Complete-View and High-Level Pose-based Gait Recognition

no code implementations23 Sep 2022 Honghu Pan, Yongyong Chen, Tingyang Xu, Yunqi He, Zhenyu He

Extensive experiments on two large gait recognition datasets, i. e., CASIA-B and OUMVLP-Pose, demonstrate that our method outperforms the baseline model and existing pose-based methods by a large margin.

Gait Recognition Generative Adversarial Network +1

Pose-Aided Video-based Person Re-Identification via Recurrent Graph Convolutional Network

no code implementations23 Sep 2022 Honghu Pan, Qiao Liu, Yongyong Chen, Yunqi He, Yuan Zheng, Feng Zheng, Zhenyu He

Finally, we propose a dual-attention method consisting of node-attention and time-attention to obtain the temporal graph representation from the node embeddings, where the self-attention mechanism is employed to learn the importance of each node and each frame.

Retrieval Video-Based Person Re-Identification +1

Multi-Granularity Graph Pooling for Video-based Person Re-Identification

no code implementations23 Sep 2022 Honghu Pan, Yongyong Chen, Zhenyu He

To downsample the graph, we propose a multi-head full attention graph pooling (MHFAPool) layer, which integrates the advantages of existing node clustering and node selection pooling methods.

Node Clustering Retrieval +2

Low-rank Meets Sparseness: An Integrated Spatial-Spectral Total Variation Approach to Hyperspectral Denoising

no code implementations27 Apr 2022 Haijin Zeng, Shaoguang Huang, Yongyong Chen, Hiep Luong, Wilfried Philips

Based on this fact, we propose a novel TV regularization to simultaneously characterize the sparsity and low-rank priors of the gradient map (LRSTV).

Denoising

Log-based Sparse Nonnegative Matrix Factorization for Data Representation

no code implementations22 Apr 2022 Chong Peng, Yiqun Zhang, Yongyong Chen, Zhao Kang, Chenglizhao Chen, Qiang Cheng

Nonnegative matrix factorization (NMF) has been widely studied in recent years due to its effectiveness in representing nonnegative data with parts-based representations.

Hyperspectral Image Denoising Using Non-convex Local Low-rank and Sparse Separation with Spatial-Spectral Total Variation Regularization

no code implementations8 Jan 2022 Chong Peng, Yang Liu, Yongyong Chen, Xinxin Wu, Andrew Cheng, Zhao Kang, Chenglizhao Chen, Qiang Cheng

In this paper, we propose a novel nonconvex approach to robust principal component analysis for HSI denoising, which focuses on simultaneously developing more accurate approximations to both rank and column-wise sparsity for the low-rank and sparse components, respectively.

Hyperspectral Image Denoising Image Denoising

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