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We consider the problem of segmenting objects in videos based on their motion and no other forms of supervision. Prior work has often approached this problem by using the principle of common fate, namely the fact that the motion of points…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Laurynas Karazija , Iro Laina , Christian Rupprecht , Andrea Vedaldi

Video Large Language Models (Video LLMs) have recently exhibited remarkable capabilities in general video understanding. However, they mainly focus on holistic comprehension and struggle with capturing fine-grained spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Yuqian Yuan , Hang Zhang , Wentong Li , Zesen Cheng , Boqiang Zhang , Long Li , Xin Li , Deli Zhao , Wenqiao Zhang , Yueting Zhuang , Jianke Zhu , Lidong Bing

The standard way of training video models entails sampling at each iteration a single clip from a video and optimizing the clip prediction with respect to the video-level label. We argue that a single clip may not have enough temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Xitong Yang , Haoqi Fan , Lorenzo Torresani , Larry Davis , Heng Wang

Despite advanced token compression techniques, existing multimodal large language models (MLLMs) still struggle with hour-long video understanding. In this work, we propose Video-XL-Pro, an efficient method for extremely long video…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Xiangrui Liu , Yan Shu , Zheng Liu , Ao Li , Yang Tian , Bo Zhao

Performing a real-time and accurate instrument segmentation from videos is of great significance for improving the performance of robotic-assisted surgery. We identify two important clues for surgical instrument perception, including local…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Jiacheng Wang , Yueming Jin , Liansheng Wang , Shuntian Cai , Pheng-Ann Heng , Jing Qin

Segmenting an object in a video presents significant challenges. Each pixel must be accurately labelled, and these labels must remain consistent across frames. The difficulty increases when the segmentation is with arbitrary granularity,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Amirhossein Alimohammadi , Sauradip Nag , Saeid Asgari Taghanaki , Andrea Tagliasacchi , Ghassan Hamarneh , Ali Mahdavi Amiri

Existing video object segmentation (VOS) benchmarks focus on short-term videos which just last about 3-5 seconds and where objects are visible most of the time. These videos are poorly representative of practical applications, and the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Lingyi Hong , Wenchao Chen , Zhongying Liu , Wei Zhang , Pinxue Guo , Zhaoyu Chen , Wenqiang Zhang

The assignment of importance scores to particular frames or (short) segments in a video is crucial for summarization, but also a difficult task. Previous work utilizes only one source of visual features. In this paper, we suggest a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Junaid Ahmed Ghauri , Sherzod Hakimov , Ralph Ewerth

Traditional video reasoning segmentation methods rely on supervised fine-tuning, which limits generalization to out-of-distribution scenarios and lacks explicit reasoning. To address this, we propose \textbf{VideoSeg-R1}, the first…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Zishan Xu , Yifu Guo , Yuquan Lu , Fengyu Yang , Junxin Li

Short video applications like TikTok and Kwai have been a great hit recently. In order to meet the increasing demands and take full advantage of visual information in short videos, objects in each short video need to be located and analyzed…

Computer Vision and Pattern Recognition · Computer Science 2021-02-11 Tairu Qiu , Guanxian Chen , Zhongang Qi , Bin Li , Ying Shan , Xiangyang Xue

Recently, several Space-Time Memory based networks have shown that the object cues (e.g. video frames as well as the segmented object masks) from the past frames are useful for segmenting objects in the current frame. However, these methods…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Haozhe Xie , Hongxun Yao , Shangchen Zhou , Shengping Zhang , Wenxiu Sun

Objects in videos are typically characterized by continuous smooth motion. We exploit continuous smooth motion in three ways. 1) Improved accuracy by using object motion as an additional source of supervision, which we obtain by…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Xin Liu , Fatemeh Karimi Nejadasl , Jan C. van Gemert , Olaf Booij , Silvia L. Pintea

This paper proposes a new framework for semantic segmentation of objects in videos. We address the label inconsistency problem of deep convolutional neural networks (DCNNs) by exploiting the fact that videos have multiple frames; in a few…

Computer Vision and Pattern Recognition · Computer Science 2017-11-23 Seong-Jin Park , Ki-Sang Hong

Video segmentation is a popular task, but applying image segmentation models frame-by-frame to videos does not preserve temporal consistency. In this paper, we propose a method to extend a query-based image segmentation model to video using…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Tsubasa Mizuno , Toru Tamaki

Integrating vision models into large language models (LLMs) has sparked significant interest in creating vision-language foundation models, especially for video understanding. Recent methods often utilize memory banks to handle untrimmed…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Sakib Reza , Xiyun Song , Heather Yu , Zongfang Lin , Mohsen Moghaddam , Octavia Camps

Visual effects (VFX) production often struggles with slow, resource-intensive mask generation. This paper presents an automated video segmentation pipeline that creates temporally consistent instance masks. It employs machine learning for:…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Johannes Merz , Lucien Fostier

Video-based multimodal large language models (Video-LLMs) possess significant potential for video understanding tasks. However, most Video-LLMs treat videos as a sequential set of individual frames, which results in insufficient…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Xiaohan Lan , Yitian Yuan , Zequn Jie , Lin Ma

Large Language Models (LLMs) face significant computational and memory constraints when processing long contexts, despite growing demand for applications requiring reasoning over extensive documents, multi-session dialogues, and book length…

Computation and Language · Computer Science 2026-02-10 Chandra Vamsi Krishna Alla , Harish Naidu Gaddam , Manohar Kommi

This paper improves upon the Pix2Seq object detector by extending it for videos. In the process, it introduces a new way to perform end-to-end video object detection that improves upon existing video detectors in two key ways. First, by…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Abhineet Singh , Nilanjan Ray

How to make a segmentation model efficiently adapt to a specific video and to online target appearance variations are fundamentally crucial issues in the field of video object segmentation. In this work, a graph memory network is developed…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Xiankai Lu , Wenguan Wang , Martin Danelljan , Tianfei Zhou , Jianbing Shen , Luc Van Gool