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Given an object mask, Semi-supervised Video Object Segmentation (SVOS) technique aims to track and segment the object across video frames, serving as a fundamental task in computer vision. Although recent memory-based methods demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Guanyi Qin , Ziyue Wang , Daiyun Shen , Haofeng Liu , Hantao Zhou , Junde Wu , Runze Hu , Yueming Jin

Generalizing open-vocabulary 3D instance segmentation (OV-3DIS) to diverse, unstructured, and mesh-free environments is crucial for robotics and AR/VR, yet remains a significant challenge. We attribute this to two key limitations of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Zhishan Zhou , Siyuan Wei , Zengran Wang , Chunjie Wang , Xiaosheng Yan , Xiao Liu

Video foreground segmentation (VFS) is an important computer vision task wherein one aims to segment the objects under motion from the background. Most of the current methods are image-based, i.e., rely only on spatial cues while ignoring…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Praveen Kumar Pokala , Jaya Sai Kiran Patibandla , Naveen Kumar Pandey , Balakrishna Reddy Pailla

The goal of this paper is open-vocabulary object detection (OVOD) $\unicode{x2013}$ building a model that can detect objects beyond the set of categories seen at training, thus enabling the user to specify categories of interest at…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Prannay Kaul , Weidi Xie , Andrew Zisserman

Video object segmentation (VOS) is a highly challenging problem since the initial mask, defining the target object, is only given at test-time. The main difficulty is to effectively handle appearance changes and similar background objects,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Andreas Robinson , Felix Järemo Lawin , Martin Danelljan , Fahad Shahbaz Khan , Michael Felsberg

Conventional approaches to video segmentation are confined to predefined object categories and cannot identify out-of-vocabulary objects, let alone objects that are not identified explicitly but only referred to implicitly in complex text…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Yiqing Shen , Chenjia Li , Chenxiao Fan , Mathias Unberath

Temporal Action Segmentation (TAS) requires dividing videos into action segments, yet the vast space of activities and alternative breakdowns makes collecting comprehensive datasets infeasible. Existing methods remain limited to closed…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Asim Unmesh , Kaki Ramesh , Mayank Patel , Rahul Jain , Karthik Ramani

Referential Video Object Segmentation (RVOS) aims to segment all objects in a video that match a given natural language description, bridging the gap between vision and language understanding. Recent work, such as Sa2VA, combines Large…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Ran Hong , Feng Lu , Leilei Cao , An Yan , Youhai Jiang , Fengjie Zhu

Classical object detectors are incapable of detecting novel class objects that are not encountered before. Regarding this issue, Open-Vocabulary Object Detection (OVOD) is proposed, which aims to detect the objects in the candidate class…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Zhao Wang , Aoxue Li , Fengwei Zhou , Zhenguo Li , Qi Dou

Video instance segmentation requires detecting, segmenting, and tracking objects in videos, typically relying on costly video annotations. This paper introduces a method that eliminates video annotations by utilizing image datasets. The…

Computer Vision and Pattern Recognition · Computer Science 2024-07-01 Zhangjing Yang , Dun Liu , Xin Wang , Zhe Li , Barathwaj Anandan , Yi Wu

In this work, we present a new computer vision task named video object of interest segmentation (VOIS). Given a video and a target image of interest, our objective is to simultaneously segment and track all objects in the video that are…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Siyuan Zhou , Chunru Zhan , Biao Wang , Tiezheng Ge , Yuning Jiang , Li Niu

The performance of Video Instance Segmentation (VIS) methods has improved significantly with the advent of transformer networks. However, these networks often face challenges in training due to the high annotation cost. To address this,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Farnoosh Arefi , Amir M. Mansourian , Shohreh Kasaei

Referring video object segmentation (RVOS) aims to segment video objects with the guidance of natural language reference. Previous methods typically tackle RVOS through directly grounding linguistic reference over the image lattice. Such…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Chen Liang , Yu Wu , Tianfei Zhou , Wenguan Wang , Zongxin Yang , Yunchao Wei , Yi Yang

Referring Video Object Segmentation (R-VOS) methods face challenges in maintaining consistent object segmentation due to temporal context variability and the presence of other visually similar objects. We propose an end-to-end R-VOS…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Bo Miao , Mohammed Bennamoun , Yongsheng Gao , Mubarak Shah , Ajmal Mian

Most state-of-the-art semi-supervised video object segmentation methods rely on a pixel-accurate mask of a target object provided for the first frame of a video. However, obtaining a detailed segmentation mask is expensive and…

Computer Vision and Pattern Recognition · Computer Science 2019-02-06 Anna Khoreva , Anna Rohrbach , Bernt Schiele

Spatio-Temporal Video Grounding requires jointly localizing target objects across both temporal and spatial dimensions based on natural language queries, posing fundamental challenges for existing Multimodal Large Language Models (MLLMs).…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Xuezhen Tu , Jingyu Wu , Fangyu Kang , Qingpeng Nong , Kaijin Zhang , Chaoyue Niu , Fan Wu

Unsupervised Video Object Segmentation (UVOS) aims at discovering objects and tracking them through videos. For accurate UVOS, we observe if one can locate precise segment proposals on key frames, subsequent processes are much simpler.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Jialin Yuan , Jay Patravali , Hung Nguyen , Chanho Kim , Li Fuxin

In this paper, we introduce a variant of video object segmentation (VOS) that bridges interactive and semi-automatic approaches, termed Lazy Video Object Segmentation (ziVOS). In contrast, to both tasks, which handle video object…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Stéphane Vujasinović , Stefan Becker , Sebastian Bullinger , Norbert Scherer-Negenborn , Michael Arens , Rainer Stiefelhagen

Referring video object segmentation aims to predict foreground labels for objects referred by natural language expressions in videos. Previous methods either depend on 3D ConvNets or incorporate additional 2D ConvNets as encoders to extract…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Zihan Ding , Tianrui Hui , Junshi Huang , Xiaoming Wei , Jizhong Han , Si Liu

Referring Video Object Segmentation (RVOS) aims to segment and track objects in videos based on natural language expressions, requiring precise alignment between visual content and textual queries. However, existing methods often suffer…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Seunghun Lee , Jiwan Seo , Jeonghoon Kim , Sungho Moon , Siwon Kim , Haeun Yun , Hyogyeong Jeon , Wonhyeok Choi , Jaehoon Jeong , Zane Durante , Sang Hyun Park , Sunghoon Im