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Deep convolutional neutral networks have achieved great success on image recognition tasks. Yet, it is non-trivial to transfer the state-of-the-art image recognition networks to videos as per-frame evaluation is too slow and unaffordable.…

Computer Vision and Pattern Recognition · Computer Science 2017-06-06 Xizhou Zhu , Yuwen Xiong , Jifeng Dai , Lu Yuan , Yichen Wei

Scene flow, which provides the 3D motion field of the first frame from two consecutive point clouds, is vital for dynamic scene perception. However, contemporary scene flow methods face three major challenges. Firstly, they lack global flow…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Zhiyang Lu , Qinghan Chen , Zhimin Yuan , Ming Cheng

We propose Frequency-Guided Attention (FGA), a lightweight upsampling module for single image super-resolution. Conventional upsamplers, such as Sub-Pixel Convolution, are efficient but frequently fail to reconstruct high-frequency details…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Daejune Choi , Youchan No , Jinhyung Lee , Duksu Kim

In this paper, we propose an end-to-end feature fusion at-tention network (FFA-Net) to directly restore the haze-free image. The FFA-Net architecture consists of three key components: 1) A novel Feature Attention (FA) module combines…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 Xu Qin , Zhilin Wang , Yuanchao Bai , Xiaodong Xie , Huizhu Jia

In real-world scenarios, many factors may harm face recognition performance, e.g., large pose, bad illumination,low resolution, blur and noise. To address these challenges, previous efforts usually first restore the low-quality faces to…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Xiaoguang Tu , Jian Zhao , Qiankun Liu , Wenjie Ai , Guodong Guo , Zhifeng Li , Wei Liu , Jiashi Feng

Recently, the research interest of person re-identification (ReID) has gradually turned to video-based methods, which acquire a person representation by aggregating frame features of an entire video. However, existing video-based ReID…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Xinyang Jiang , Yifei Gong , Xiaowei Guo , Qize Yang , Feiyue Huang , Weishi Zheng , Feng Zheng , Xing Sun

A motion-blurred image is the temporal average of multiple sharp frames over the exposure time. Recovering these sharp video frames from a single blurred image is nontrivial, due to not only its strong ill-posedness, but also various types…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Daoyu Li , Liheng Bian , Jun Zhang

Transformer-based methods have achieved remarkable results in image super-resolution tasks because they can capture non-local dependencies in low-quality input images. However, this feature-intensive modeling approach is computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Wei Long , Xingyu Zhou , Leheng Zhang , Shuhang Gu

Image watermarking supports authenticity and provenance, yet many schemes are still easy to bypass with various distortions and powerful generative edits. Deep learning-based watermarking has improved robustness to diffusion-based image…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Utae Jeong , Sumin In , Hyunju Ryu , Jaewan Choi , Feng Yang , Jongheon Jeong , Seungryong Kim , Sangpil Kim

Atmospheric turbulence severely degrades video quality by introducing distortions such as geometric warping, blur, and temporal flickering, posing significant challenges to both visual clarity and temporal consistency. Current…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Zhiming Liu , Nantheera Anantrasirichai

Monocular scene flow estimation aims to recover dense 3D motion from image sequences, yet most existing methods are limited to two-frame inputs, restricting temporal modeling and robustness to occlusions. We propose RAFT-MSF++, a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Xunpei Sun , Zuoxun Hou , Yi Chang , Gang Chen , Wei-Shi Zheng

Video super-resolution (SR) aims at generating a sequence of high-resolution (HR) frames with plausible and temporally consistent details from their low-resolution (LR) counterparts. The key challenge for video SR lies in the effective…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Longguang Wang , Yulan Guo , Li Liu , Zaiping Lin , Xinpu Deng , Wei An

Video segmentation approaches are of great importance for numerous vision tasks especially in video manipulation for entertainment. Due to the challenges associated with acquiring high-quality per-frame segmentation annotations and large…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Mingyang Qian , Yi Fu , Xiao Tan , Yingying Li , Jinqing Qi , Huchuan Lu , Shilei Wen , Errui Ding

Recent advancements in video understanding within visual large language models (VLLMs) have led to notable progress. However, the complexity of video data and contextual processing limitations still hinder long-video comprehension. A common…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Yanan Guo , Wenhui Dong , Jun Song , Shiding Zhu , Xuan Zhang , Hanqing Yang , Yingbo Wang , Yang Du , Xianing Chen , Bo Zheng

Reinforcement Fine-Tuning (RFT) on flow-based models is crucial for preference alignment. However, they often introduce visual hallucinations like over-optimized details and semantic misalignment. This work preliminarily explores why visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Xiaofeng Tan , Jun Liu , Yuanting Fan , Bin-Bin Gao , Xi Jiang , Xiaochen Chen , Jinlong Peng , Chengjie Wang , Hongsong Wang , Feng Zheng

Pruning is a model compression method that removes redundant parameters in deep neural networks (DNNs) while maintaining accuracy. Most available filter pruning methods require complex treatments such as iterative pruning, features…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Yue Wu , Yuan Lan , Luchan Zhang , Yang Xiang

The current research focus on Content-Based Video Retrieval requires higher-level video representation describing the long-range semantic dependencies of relevant incidents, events, etc. However, existing methods commonly process the frames…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Jie Shao , Xin Wen , Bingchen Zhao , Xiangyang Xue

Deep neural networks for event-based video reconstruction often suffer from a lack of interpretability and have high memory demands. A lightweight network called CISTA-LSTC has recently been introduced showing that high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Siying Liu , Pier Luigi Dragotti

In this paper, we introduce Coarse-Fine Networks, a two-stream architecture which benefits from different abstractions of temporal resolution to learn better video representations for long-term motion. Traditional Video models process…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Kumara Kahatapitiya , Michael S. Ryoo

Surface normal estimation serves as a cornerstone for a spectrum of computer vision applications. While numerous efforts have been devoted to static image scenarios, ensuring temporal coherence in video-based normal estimation remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Yanrui Bin , Wenbo Hu , Haoyuan Wang , Xinya Chen , Bing Wang