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Efficient long-video understanding~(LVU) remains a challenging task in computer vision. Current long-context vision-language models~(LVLMs) suffer from information loss due to compression and brute-force downsampling. While…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Huaying Yuan , Zheng Liu , Minghao Qin , Hongjin Qian , Yan Shu , Zhicheng Dou , Ji-Rong Wen , Nicu Sebe

The handling of long videos with complex and occluded sequences has recently emerged as a new challenge in the video instance segmentation (VIS) community. However, existing methods have limitations in addressing this challenge. We argue…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Miran Heo , Sukjun Hwang , Jeongseok Hyun , Hanjung Kim , Seoung Wug Oh , Joon-Young Lee , Seon Joo Kim

Referring Audio-Visual Segmentation (Ref-AVS) aims to segment specific objects in videos based on natural language expressions involving audio, vision, and text information. This task poses significant challenges in cross-modal reasoning…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Dian Jin , Yanghao Zhou , Jinxing Zhou , Jiaqi Ma , Ruohao Guo , Dan Guo

Recently, Space-Time Memory Network (STM) based methods have achieved state-of-the-art performance in semi-supervised video object segmentation (VOS). A crucial problem in this task is how to model the dependency both among different frames…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Jianbiao Mei , Mengmeng Wang , Yeneng Lin , Yi Yuan , Yong Liu

Video Instance Segmentation (VIS) aims at segmenting and categorizing objects in videos from a closed set of training categories, lacking the generalization ability to handle novel categories in real-world videos. To address this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Haochen Wang , Cilin Yan , Shuai Wang , Xiaolong Jiang , XU Tang , Yao Hu , Weidi Xie , Efstratios Gavves

In autonomous driving, accurately distinguishing between static and moving objects is crucial for the autonomous driving system. When performing the motion object segmentation (MOS) task, effectively leveraging motion information from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Xiaoyu Tang , Zeyu Chen , Jintao Cheng , Xieyuanli Chen , Jin Wu , Bohuan Xue

We consider the task of semi-supervised video object segmentation (VOS). Our approach mitigates shortcomings in previous VOS work by addressing detail preservation and temporal consistency using visual warping. In contrast to prior work…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Julia Gong , F. Christopher Holsinger , Serena Yeung

Unsupervised video object segmentation aims to automatically segment moving objects over an unconstrained video without any user annotation. So far, only few unsupervised online methods have been reported in literature and their performance…

Computer Vision and Pattern Recognition · Computer Science 2019-08-07 Tao Zhuo , Zhiyong Cheng , Peng Zhang , Yongkang Wong , Mohan Kankanhalli

Exploring dense matching between the current frame and past frames for long-range context modeling, memory-based methods have demonstrated impressive results in video object segmentation (VOS) recently. Nevertheless, due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Junke Wang , Dongdong Chen , Zuxuan Wu , Chong Luo , Chuanxin Tang , Xiyang Dai , Yucheng Zhao , Yujia Xie , Lu Yuan , Yu-Gang Jiang

Segmentation of video objects in complex scenarios is highly challenging, and the MOSE dataset has significantly contributed to the development of this field. This technical report details the STSeg solution proposed by the "imaplus"…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Kehuan Song , Xinglin Xie , Kexin Zhang , Licheng Jiao , Lingling Li , Shuyuan Yang

Intelligent robots need to interact with diverse objects across various environments. The appearance and state of objects frequently undergo complex transformations depending on the object properties, e.g., phase transitions. However, in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Zixuan Chen , Jiaxin Li , Liming Tan , Yejie Guo , Junxuan Liang , Cewu Lu , Yong-Lu Li

We tackle the task of semi-supervised video object segmentation, i.e. segmenting the pixels belonging to an object in the video using the ground truth pixel mask for the first frame. We build on the recently introduced one-shot video object…

Computer Vision and Pattern Recognition · Computer Science 2017-08-02 Paul Voigtlaender , Bastian Leibe

We present an approach to semi-supervised video object segmentation, in the context of the DAVIS 2017 challenge. Our approach combines category-based object detection, category-independent object appearance segmentation and temporal object…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Gilad Sharir , Eddie Smolyansky , Itamar Friedman

Space-time memory (STM) network methods have been dominant in semi-supervised video object segmentation (SVOS) due to their remarkable performance. In this work, we identify three key aspects where we can improve such methods; i)…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Evangelos Skartados , Konstantinos Georgiadis , Mehmet Kerim Yucel , Koskinas Ioannis , Armando Domi , Anastasios Drosou , Bruno Manganelli , Albert Saa-Garriga

Video Instance Segmentation (VIS) is a multi-task problem performing detection, segmentation, and tracking simultaneously. Extended from image set applications, video data additionally induces the temporal information, which, if handled…

Computer Vision and Pattern Recognition · Computer Science 2021-07-12 Thuy C. Nguyen , Tuan N. Tang , Nam LH. Phan , Chuong H. Nguyen , Masayuki Yamazaki , Masao Yamanaka

Continual learning in real-world scenarios is a major challenge. A general continual learning model should have a constant memory size and no predefined task boundaries, as is the case in semi-supervised Video Object Segmentation (VOS),…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Amir Nazemi , Zeyad Moustafa , Paul Fieguth

Referring video object segmentation (RVOS) aims to segment the target object in a video sequence described by a language expression. Typical multimodal Transformer based RVOS approaches process video sequence in a frame-independent manner…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Meng Lan , Fu Rong , Zuchao Li , Wei Yu , Lefei Zhang

We segment moving objects in videos by ranking spatio-temporal segment proposals according to "moving objectness": how likely they are to contain a moving object. In each video frame, we compute segment proposals using multiple…

Computer Vision and Pattern Recognition · Computer Science 2015-05-11 Katerina Fragkiadaki , Pablo Arbelaez , Panna Felsen , Jitendra Malik

Referring image segmentation (RIS) aims to segment an object mentioned in natural language from an image. The main challenge is text-to-pixel fine-grained correlation. In the previous methods, the final results are obtained by convolutions…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Yichen Yan , Xingjian He , Wenxuan Wang , Sihan Chen , Jing Liu

We present READMem (Robust Embedding Association for a Diverse Memory), a modular framework for semi-automatic video object segmentation (sVOS) methods designed to handle unconstrained videos. Contemporary sVOS works typically aggregate…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Stéphane Vujasinović , Sebastian Bullinger , Stefan Becker , Norbert Scherer-Negenborn , Michael Arens , Rainer Stiefelhagen