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Learning representations for graph-structured data is essential for graph analytical tasks. While remarkable progress has been made on static graphs, researches on temporal graphs are still in its beginning stage. The bottleneck of the…

Machine Learning · Computer Science 2023-03-16 Bowen Cao , Qichen Ye , Weiyuan Xu , Yuexian Zou

In video-based person re-identification, both the spatial and temporal features are known to provide orthogonal cues to effective representations. Such representations are currently typically obtained by aggregating the frame-level features…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 S V Aruna Kumar , Ehsan Yaghoubi , Hugo Proença

This paper addresses fast semantic segmentation on video.Video segmentation often calls for real-time, or even fasterthan real-time, processing. One common recipe for conserving computation arising from feature extraction is to propagate…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Shih-Po Lee , Si-Cun Chen , Wen-Hsiao Peng

Recent temporal action segmentation approaches need frame annotations during training to be effective. These annotations are very expensive and time-consuming to obtain. This limits their performances when only limited annotated data is…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Sovan Biswas , Anthony Rhodes , Ramesh Manuvinakurike , Giuseppe Raffa , Richard Beckwith

One of the solutions of depth imaging of moving scene is to project a static pattern on the object and use just a single image for reconstruction. However, if the motion of the object is too fast with respect to the exposure time of the…

Computer Vision and Pattern Recognition · Computer Science 2017-10-03 Yuki Shiba , Satoshi Ono , Ryo Furukawa , Shinsaku Hiura , Hiroshi Kawasaki

Current successful approaches for generic (non-semantic) segmentation rely mostly on edge detection and have leveraged the strengths of deep learning mainly by improving the edge detection stage in the algorithmic pipeline. This is in…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Or Isaacs , Oran Shayer , Michael Lindenbaum

As event-based sensing gains in popularity, theoretical understanding is needed to harness this technology's potential. Instead of recording video by capturing frames, event-based cameras have sensors that emit events when their inputs…

Image and Video Processing · Electrical Eng. & Systems 2022-06-10 Karen Adam , Adam Scholefield , Martin Vetterli

We propose to leverage the local information in image sequences to support global camera relocalization. In contrast to previous methods that regress global poses from single images, we exploit the spatial-temporal consistency in sequential…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Fei Xue , Xin Wang , Zike Yan , Qiuyuan Wang , Junqiu Wang , Hongbin Zha

Rapid and reliable identification of dynamic scene parts, also known as motion segmentation, is a key challenge for mobile sensors. Contemporary RGB camera-based methods rely on modeling camera and scene properties however, are often…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Stamatios Georgoulis , Weining Ren , Alfredo Bochicchio , Daniel Eckert , Yuanyou Li , Abel Gawel

Recent learning-based methods for event-based optical flow estimation utilize cost volumes for pixel matching but suffer from redundant computations and limited scalability to higher resolutions for flow refinement. In this work, we take…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Daikun Liu , Lei Cheng , Teng Wang , changyin Sun

While the Segment Anything Model (SAM) excels in semantic segmentation for general-purpose images, its performance significantly deteriorates when applied to medical images, primarily attributable to insufficient representation of medical…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Yiming Zhang , Tianang Leng , Kun Han , Xiaohui Xie

Medical image segmentation models are typically optimised with voxel-wise losses that constrain predictions only in the output space. This leaves latent feature representations largely unconstrained, potentially limiting generalisation. We…

Image and Video Processing · Electrical Eng. & Systems 2026-03-02 Puru Vaish , Amin Ranem , Felix Meister , Tobias Heimann , Christoph Brune , Jelmer M. Wolterink

Consider a set of n images of a scene with dynamic objects captured with a static or a handheld camera. Let the temporal order in which these images are captured be unknown. There can be n! possibilities for the temporal order in which…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Gagan Kanojia , Shanmuganathan Raman

In recent years, advances in Artificial Intelligence have significantly impacted computer science, particularly in the field of computer vision, enabling solutions to complex problems such as video frame prediction. Video frame prediction…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Jose M. Sánchez Velázquez , Mingbo Cai , Andrew Coney , Álvaro J. García- Tejedor , Alberto Nogales

Deep convolutional neural networks have achieved remarkable progress on a variety of medical image computing tasks. A common problem when applying supervised deep learning methods to medical images is the lack of labeled data, which is very…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Xiaomeng Li , Lequan Yu , Hao Chen , Chi-Wing Fu , Lei Xing , Pheng-Ann Heng

In this paper, we tackle the problem of temporally consistent boundary detection and hierarchical segmentation in videos. While finding the best high-level reasoning of region assignments in videos is the focus of much recent research,…

Computer Vision and Pattern Recognition · Computer Science 2016-06-09 Margret Keuper , Thomas Brox

Semantic segmentation algorithms that can robustly segment objects across multiple camera viewpoints are crucial for assuring navigation and safety in emerging applications such as autonomous driving. Existing algorithms treat each image in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-04 Brigit Schroeder , Hanlin Tang , Alexandre Alahi

A number of computer vision tasks exploit a succinct representation of the visual content in the form of sets of local features. Given an input image, feature extraction algorithms identify a set of keypoints and assign to each of them a…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Luca Baroffio , Matteo Cesana , Alessandro Redondi , Marco Tagliasacchi

The success of existing video super-resolution (VSR) algorithms stems mainly exploiting the temporal information from the neighboring frames. However, none of these methods have discussed the influence of the temporal redundancy in the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Yuhao Huang , Hang Dong , Jinshan Pan , Chao Zhu , Yu Guo , Ding Liu , Lean Fu , Fei Wang

Video diffusion models perform well in short-video synthesis, but their training-free extension to long videos often suffers from content drift, temporal inconsistency, and over-smoothed dynamics. Existing methods improve temporal…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Fangda Chen , Shanshan Zhao , Longrong Yang , Chuanfu Xu , Zhigang Luo , Long Lan