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This paper addresses the task of segmenting class-agnostic objects in semi-supervised setting. Although previous detection based methods achieve relatively good performance, these approaches extract the best proposal by a greedy strategy,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Daizong Liu , Shuangjie Xu , Xiao-Yang Liu , Zichuan Xu , Wei Wei , Pan Zhou

Shadows in videos are difficult to detect because of the large shadow deformation between frames. In this work, we argue that accounting for shadow deformation is essential when designing a video shadow detection method. To this end, we…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Lihao Liu , Jean Prost , Lei Zhu , Nicolas Papadakis , Pietro Liò , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

The performance of video saliency estimation techniques has achieved significant advances along with the rapid development of Convolutional Neural Networks (CNNs). However, devices like cameras and drones may have limited computational…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Jia Li , Kui Fu , Shengwei Zhao , Shiming Ge

This paper presents a deep learning framework for medical video segmentation. Convolution neural network (CNN) and transformer-based methods have achieved great milestones in medical image segmentation tasks due to their incredible semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Chengxi Zeng , Xinyu Yang , David Smithard , Majid Mirmehdi , Alberto M Gambaruto , Tilo Burghardt

Gait recognition is an important recognition technology, because gait is not easy to camouflage and does not need cooperation to recognize subjects. However, many existing methods are inadequate in preserving both temporal information and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Yifan Chen , Yang Zhao , Xuelong Li

Shadows can originate from occlusions in both direct and indirect illumination. Although most current shadow removal research focuses on shadows caused by direct illumination, shadows from indirect illumination are often just as pervasive,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Jiamin Xu , Zelong Li , Yuxin Zheng , Chenyu Huang , Renshu Gu , Weiwei Xu , Gang Xu

This paper addresses the problem of how to exploit spatio-temporal information available in videos to improve the object detection precision. We propose a two stage object detector called FANet based on short-term spatio-temporal feature…

Computer Vision and Pattern Recognition · Computer Science 2020-11-09 Daniel Cores , Víctor M. Brea , Manuel Mucientes

Long-range and short-range temporal modeling are two complementary and crucial aspects of video recognition. Most of the state-of-the-arts focus on short-range spatio-temporal modeling and then average multiple snippet-level predictions to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Wenhao Wu , Yuxiang Zhao , Yanwu Xu , Xiao Tan , Dongliang He , Zhikang Zou , Jin Ye , Yingying Li , Mingde Yao , Zichao Dong , Yifeng Shi

The video-based person re-identification is to recognize a person under different cameras, which is a crucial task applied in visual surveillance system. Most previous methods mainly focused on the feature of full body in the frame. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-07-04 Jie Liu , Cheng Sun , Xiang Xu , Baomin Xu , Shuangyuan Yu

The waterdrops on windshields during driving can cause severe visual obstructions, which may lead to car accidents. Meanwhile, the waterdrops can also degrade the performance of a computer vision system in autonomous driving. To address…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Qiang Wen , Yue Wu , Qifeng Chen

Recent video semantic segmentation (VSS) methods have demonstrated promising results in well-lit environments. However, their performance significantly drops in low-light scenarios due to limited visibility and reduced contextual details.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Zhen Yao , Mooi Choo Chuah

Human shape estimation is an important task for video editing, animation and fashion industry. Predicting 3D human body shape from natural images, however, is highly challenging due to factors such as variation in human bodies, clothing and…

Computer Vision and Pattern Recognition · Computer Science 2018-08-21 Gül Varol , Duygu Ceylan , Bryan Russell , Jimei Yang , Ersin Yumer , Ivan Laptev , Cordelia Schmid

Recent deep learning methods have achieved promising results in image shadow removal. However, most of the existing approaches focus on working locally within shadow and non-shadow regions, resulting in severe artifacts around the shadow…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Lanqing Guo , Siyu Huang , Ding Liu , Hao Cheng , Bihan Wen

Instance shadow detection is the task of detecting pairs of shadows and objects, where existing methods first detect shadows and objects independently, then associate them. This paper introduces FastInstShadow, a method that enhances…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Takeru Inoue , Ryusuke Miyamoto

The video based CNN works have focused on effective ways to fuse appearance and motion networks, but they typically lack utilizing temporal information over video frames. In this work, we present a novel spatio-temporal fusion network…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Sangwoo Cho , Hassan Foroosh

Shadow detection in general photos is a nontrivial problem, due to the complexity of the real world. Though recent shadow detectors have already achieved remarkable performance on various benchmark data, their performance is still limited…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Xiaowei Hu , Tianyu Wang , Chi-Wing Fu , Yitong Jiang , Qiong Wang , Pheng-Ann Heng

Point cloud sequences are irregular and unordered in the spatial dimension while exhibiting regularities and order in the temporal dimension. Therefore, existing grid based convolutions for conventional video processing cannot be directly…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Hehe Fan , Xin Yu , Yuhang Ding , Yi Yang , Mohan Kankanhalli

Shot boundary detection (SBD) is an important pre-processing step for video manipulation. Here, each segment of frames is classified as either sharp, gradual or no transition. Current SBD techniques analyze hand-crafted features and attempt…

Computer Vision and Pattern Recognition · Computer Science 2017-07-28 Ahmed Hassanien , Mohamed Elgharib , Ahmed Selim , Sung-Ho Bae , Mohamed Hefeeda , Wojciech Matusik

Video stabilization technique is essential for most hand-held captured videos due to high-frequency shakes. Several 2D-, 2.5D- and 3D-based stabilization techniques are well studied, but to our knowledge, no solutions based on deep neural…

Graphics · Computer Science 2018-02-23 Miao Wang , Guo-Ye Yang , Jin-Kun Lin , Ariel Shamir , Song-Hai Zhang , Shao-Ping Lu , Shi-Min Hu

Shadow boundaries can be confused with material boundaries as both exhibit sharp changes in luminance or contrast within a scene. However, shadows do not modify the intrinsic color or texture of surfaces. Therefore, on both sides of shadow…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Shilin Hu , Hieu Le , ShahRukh Athar , Sagnik Das , Dimitris Samaras
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