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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

This paper proposes a novel method for high-quality image segmentation of both objects and scenes. Inspired by the dilation and erosion operations in morphological image processing techniques, the pixel-level image segmentation problems are…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Hao He , Xiangtai Li , Yibo Yang , Guangliang Cheng , Yunhai Tong , Lubin Weng , Zhouchen Lin , Shiming Xiang

Video object segmentation (VOS) is a critical task in the development of video perception and understanding. The Segment-Anything Model 2 (SAM 2), released by Meta AI, is the current state-of-the-art architecture for end-to-end VOS. SAM 2…

Image and Video Processing · Electrical Eng. & Systems 2025-05-14 Clayton Bromley , Alexander Moore , Amar Saini , Doug Poland , Carmen Carrano

We propose a simple, yet powerful approach for unsupervised object segmentation in videos. We introduce an objective function whose minimum represents the mask of the main salient object over the input sequence. It only relies on…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Georgy Ponimatkin , Nermin Samet , Yang Xiao , Yuming Du , Renaud Marlet , Vincent Lepetit

The problem of video object segmentation can become extremely challenging when multiple instances co-exist. While each instance may exhibit large scale and pose variations, the problem is compounded when instances occlude each other causing…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Xiaoxiao Li , Chen Change Loy

Open-vocabulary image semantic segmentation (OVS) seeks to segment images into semantic regions across an open set of categories. Existing OVS methods commonly depend on foundational vision-language models and utilize similarity computation…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Qinglong Cao , Yuntian Chen , Chao Ma , Xiaokang Yang

Referring video object segmentation (RVOS) aims to segment objects in videos guided by natural language descriptions. We propose FS-RVOS, a Transformer-based model with two key components: a cross-modal affinity module and an instance…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Heng Liu , Guanghui Li , Mingqi Gao , Xiantong Zhen , Feng Zheng , Yang Wang

Video object segmentation targets at segmenting a specific object throughout a video sequence, given only an annotated first frame. Recent deep learning based approaches find it effective by fine-tuning a general-purpose segmentation model…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Linjie Yang , Yanran Wang , Xuehan Xiong , Jianchao Yang , Aggelos K. Katsaggelos

Unsupervised video object segmentation (VOS) aims to detect the most salient object in a video sequence at the pixel level. In unsupervised VOS, most state-of-the-art methods leverage motion cues obtained from optical flow maps in addition…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Suhwan Cho , Minhyeok Lee , Seunghoon Lee , Chaewon Park , Donghyeong Kim , Sangyoun Lee

We address Unsupervised Video Object Segmentation (UVOS), the task of automatically generating accurate pixel masks for salient objects in a video sequence and of tracking these objects consistently through time, without any input about…

Computer Vision and Pattern Recognition · Computer Science 2020-01-16 Jonathon Luiten , Idil Esen Zulfikar , Bastian Leibe

Automatic Video Object Segmentation (AVOS) refers to the task of autonomously segmenting target objects in video sequences without relying on human-provided annotations in the first frames. In AVOS, the use of motion information is crucial,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Sota Kawamura , Hirotada Honda , Shugo Nakamura , Takashi Sano

Referring video object segmentation (RVOS) aims to segment the target instance in a video, referred by a text expression. Conventional approaches are mostly supervised learning, requiring expensive pixel-level mask annotations. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Miaojing Shi , Jun Huang , Zijie Yue , Hanli Wang

Audio-visual segmentation aims to separate sounding objects from videos by predicting pixel-level masks based on audio signals. Existing methods primarily concentrate on closed-set scenarios and direct audio-visual alignment and fusion,…

Machine Learning · Computer Science 2026-03-31 Shengkai Chen , Yifang Yin , Jinming Cao , Shili Xiang , Zhenguang Liu , Roger Zimmermann

Existing Video Object Segmentation (VOS) relies on explicit user instructions, such as categories, masks, or short phrases, restricting their ability to perform complex video segmentation requiring reasoning with world knowledge. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Cilin Yan , Haochen Wang , Shilin Yan , Xiaolong Jiang , Yao Hu , Guoliang Kang , Weidi Xie , Efstratios Gavves

Video Instance Segmentation (VIS) jointly tackles multi-object detection, tracking, and segmentation in video sequences. In the past, VIS methods mirrored the fragmentation of these subtasks in their architectural design, hence missing out…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Adrià Caelles , Tim Meinhardt , Guillem Brasó , Laura Leal-Taixé

Unsupervised video object segmentation (UVOS) aims at detecting the primary objects in a given video sequence without any human interposing. Most existing methods rely on two-stream architectures that separately encode the appearance and…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Lingyi Hong , Wei Zhang , Shuyong Gao , Hong Lu , WenQiang Zhang

We propose a new method for video object segmentation (VOS) that addresses object pattern learning from unlabeled videos, unlike most existing methods which rely heavily on extensive annotated data. We introduce a unified…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Xiankai Lu , Wenguan Wang , Jianbing Shen , Yu-Wing Tai , David Crandall , Steven C. H. Hoi

Recently, transformer-based approaches have shown promising results for semi-supervised video object segmentation. However, these approaches typically struggle on long videos due to increased GPU memory demands, as they frequently expand…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Abdelrahman Shaker , Syed Talal Wasim , Martin Danelljan , Salman Khan , Ming-Hsuan Yang , Fahad Shahbaz Khan

We address the problem of instance-level semantic segmentation, which aims at jointly detecting, segmenting and classifying every individual object in an image. In this context, existing methods typically propose candidate objects, usually…

Computer Vision and Pattern Recognition · Computer Science 2017-04-10 Zeeshan Hayder , Xuming He , Mathieu Salzmann

Video segmentation aims at partitioning video sequences into meaningful segments based on objects or regions of interest within frames. Current video segmentation models are often derived from image segmentation techniques, which struggle…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Chen Liang , Qiang Guo , Xiaochao Qu , Luoqi Liu , Ting Liu