Search Results for author: Luxin Yan

Found 25 papers, 8 papers with code

Seeing Motion at Nighttime with an Event Camera

1 code implementation18 Apr 2024 Haoyue Liu, Shihan Peng, Lin Zhu, Yi Chang, Hanyu Zhou, Luxin Yan

In this work, we present a novel nighttime dynamic imaging method with an event camera.

Powerful Lossy Compression for Noisy Images

no code implementations21 Mar 2024 Shilv Cai, Xiaoguo Liang, Shuning Cao, Luxin Yan, Sheng Zhong, Liqun Chen, Xu Zou

Image compression and denoising represent fundamental challenges in image processing with many real-world applications.

Denoising Image Compression

JSTR: Joint Spatio-Temporal Reasoning for Event-based Moving Object Detection

no code implementations12 Mar 2024 Hanyu Zhou, Zhiwei Shi, Hao Dong, Shihan Peng, Yi Chang, Luxin Yan

In spatial reasoning stage, we project the compensated events into the same image coordinate, discretize the timestamp of events to obtain a time image that can reflect the motion confidence, and further segment the moving object through adaptive threshold on the time image.

Motion Compensation Moving Object Detection +2

Bring Event into RGB and LiDAR: Hierarchical Visual-Motion Fusion for Scene Flow

no code implementations12 Mar 2024 Hanyu Zhou, Yi Chang, Zhiwei Shi, Luxin Yan

In this work, we bring the event as a bridge between RGB and LiDAR, and propose a novel hierarchical visual-motion fusion framework for scene flow, which explores a homogeneous space to fuse the cross-modal complementary knowledge for physical interpretation.

Exploring the Common Appearance-Boundary Adaptation for Nighttime Optical Flow

no code implementations31 Jan 2024 Hanyu Zhou, Yi Chang, Haoyue Liu, Wending Yan, Yuxing Duan, Zhiwei Shi, Luxin Yan

In appearance adaptation, we employ the intrinsic image decomposition to embed the auxiliary daytime image and the nighttime image into a reflectance-aligned common space.

Domain Adaptation Intrinsic Image Decomposition +1

1st Solution Places for CVPR 2023 UG$^2$+ Challenge Track 2.2-Coded Target Restoration through Atmospheric Turbulence

1 code implementation15 Jun 2023 Shengqi Xu, Shuning Cao, Haoyue Liu, Xueyao Xiao, Yi Chang, Luxin Yan

We subsequently select the sharpest set of registered frames by employing a frame selection approach based on image sharpness, and average them to produce an image that is largely free of geometric distortion, albeit with blurriness.

Deblurring Image Registration

1st Solution Places for CVPR 2023 UG$^{\textbf{2}}$+ Challenge Track 2.1-Text Recognition through Atmospheric Turbulence

1 code implementation15 Jun 2023 Shengqi Xu, Xueyao Xiao, Shuning Cao, Yi Chang, Luxin Yan

In this technical report, we present the solution developed by our team VIELab-HUST for text recognition through atmospheric turbulence in Track 2. 1 of the CVPR 2023 UG$^{2}$+ challenge.

Image Registration Optical Flow Estimation

Make Lossy Compression Meaningful for Low-Light Images

1 code implementation24 May 2023 Shilv Cai, Liqun Chen, Sheng Zhong, Luxin Yan, Jiahuan Zhou, Xu Zou

Experimental results show that our proposed joint solution achieves a significant improvement over different combinations of existing state-of-the-art sequential ``Compress before Enhance'' or ``Enhance before Compress'' solutions for low-light images, which would make lossy low-light image compression more meaningful.

Image Compression Low-Light Image Enhancement

A Two-Stage Real Image Deraining Method for GT-RAIN Challenge CVPR 2023 Workshop UG$^{\textbf{2}}$+ Track 3

1 code implementation13 May 2023 Yun Guo, Xueyao Xiao, Xiaoxiong Wang, Yi Li, Yi Chang, Luxin Yan

Secondly, a transformer-based single image deraining network Uformer is implemented to pre-train on large real rain dataset and then fine-tuned on pseudo GT to further improve image restoration.

Image Restoration Single Image Deraining +1

Unsupervised Hierarchical Domain Adaptation for Adverse Weather Optical Flow

no code implementations24 Mar 2023 Hanyu Zhou, Yi Chang, Gang Chen, Luxin Yan

In motion adaptation, we utilize the flow consistency knowledge to align the cross-domain optical flows into a motion-invariance common space, where the optical flow from clean weather is used as the guidance-knowledge to obtain a preliminary optical flow for adverse weather.

Domain Adaptation Optical Flow Estimation

Unsupervised Cumulative Domain Adaptation for Foggy Scene Optical Flow

no code implementations CVPR 2023 Hanyu Zhou, Yi Chang, Wending Yan, Luxin Yan

To handle the practical optical flow under real foggy scenes, in this work, we propose a novel unsupervised cumulative domain adaptation optical flow (UCDA-Flow) framework: depth-association motion adaptation and correlation-alignment motion adaptation.

Domain Adaptation Optical Flow Estimation

Both Diverse and Realism Matter: Physical Attribute and Style Alignment for Rainy Image Generation

no code implementations ICCV 2023 Changfeng Yu, Shiming Chen, Yi Chang, Yibing Song, Luxin Yan

To solve this dilemma, we propose a physical alignment and controllable generation network (PCGNet) for diverse and realistic rain generation.

Attribute Image Generation +1

Unsupervised Deraining: Where Asymmetric Contrastive Learning Meets Self-similarity

no code implementations2 Nov 2022 Yi Chang, Yun Guo, Yuntong Ye, Changfeng Yu, Lin Zhu, XiLe Zhao, Luxin Yan, Yonghong Tian

In addition, considering that the existing real rain datasets are of low quality, either small scale or downloaded from the internet, we collect a real large-scale dataset under various rainy kinds of weather that contains high-resolution rainy images.

Contrastive Learning Rain Removal

High-Fidelity Variable-Rate Image Compression via Invertible Activation Transformation

1 code implementation12 Sep 2022 Shilv Cai, Zhijun Zhang, Liqun Chen, Luxin Yan, Sheng Zhong, Xu Zou

We implement the IAT in a mathematical invertible manner on a single rate Invertible Neural Network (INN) based model and the quality level (QLevel) would be fed into the IAT to generate scaling and bias tensors.

Image Compression Vocal Bursts Intensity Prediction

Category-Aware Transformer Network for Better Human-Object Interaction Detection

no code implementations CVPR 2022 Leizhen Dong, Zhimin Li, Kunlun Xu, Zhijun Zhang, Luxin Yan, Sheng Zhong, Xu Zou

Specifically, the Object Query would be initialized via category priors represented by an external object detection model to yield better performance.

Human-Object Interaction Detection Object +2

Unsupervised Image Deraining: Optimization Model Driven Deep CNN

no code implementations25 Mar 2022 Changfeng Yu, Yi Chang, Yi Li, XiLe Zhao, Luxin Yan

Consequently, we design an optimization model-driven deep CNN in which the unsupervised loss function of the optimization model is enforced on the proposed network for better generalization.

Rain Removal

Effective Actor-centric Human-object Interaction Detection

no code implementations24 Feb 2022 Kunlun Xu, Zhimin Li, Zhijun Zhang, Leizhen Dong, Wenhui Xu, Luxin Yan, Sheng Zhong, Xu Zou

Moreover, we also use an actor branch to get interaction prediction of the actor and propose a novel composition strategy based on center-point indexing to generate the final HOI prediction.

Human-Object Interaction Detection Object

Physically Disentangled Intra- and Inter-Domain Adaptation for Varicolored Haze Removal

1 code implementation CVPR 2022 Yi Li, Yi Chang, Yan Gao, Changfeng Yu, Luxin Yan

Consequently, we perform inter-domain adaptation between the synthetic and real images by mutually exchanging the background and other two components.

Domain Adaptation Image Dehazing

Learning Oriented Remote Sensing Object Detection via Naive Geometric Computing

no code implementations1 Dec 2021 Yanjie Wang, Xu Zou, Zhijun Zhang, Wenhui Xu, Liqun Chen, Sheng Zhong, Luxin Yan, Guodong Wang

Detecting oriented objects along with estimating their rotation information is one crucial step for analyzing remote sensing images.

object-detection Object Detection +2

Closing the Loop: Joint Rain Generation and Removal via Disentangled Image Translation

no code implementations CVPR 2021 Yuntong Ye, Yi Chang, Hanyu Zhou, Luxin Yan

Existing deep learning-based image deraining methods have achieved promising performance for synthetic rainy images, typically rely on the pairs of sharp images and simulated rainy counterparts.

Disentanglement Rain Removal +1

Transformed Low-Rank Model for Line Pattern Noise Removal

no code implementations ICCV 2017 Yi Chang, Luxin Yan, Sheng Zhong

This paper addresses the problem of line pattern noise removal from a single image, such as rain streak, hyperspectral stripe and so on.

Weighted Low-rank Tensor Recovery for Hyperspectral Image Restoration

no code implementations1 Sep 2017 Yi Chang, Luxin Yan, Houzhang Fang, Sheng Zhong, Zhijun Zhang

To overcome these limitations, in this work, we propose a unified low-rank tensor recovery model for comprehensive HSI restoration tasks, in which non-local similarity between spectral-spatial cubic and spectral correlation are simultaneously captured by 3-order tensors.

Deblurring Denoising +3

Hyper-Laplacian Regularized Unidirectional Low-Rank Tensor Recovery for Multispectral Image Denoising

no code implementations CVPR 2017 Yi Chang, Luxin Yan, Sheng Zhong

Recent low-rank based matrix/tensor recovery methods have been widely explored in multispectral images (MSI) denoising.

Image Denoising

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