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Referring Video Object Segmentation (RVOS) aims to segment an object of interest throughout a video based on a language description. The prominent challenge lies in aligning static text with dynamic visual content, particularly when objects…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Bingrui Zhao , Lin Yuanbo Wu , Xiangtian Fan , Deyin Liu , Lu Zhang , Ruyi He , Jialie Shen , Ximing Li

We present a novel hierarchical spatiotemporal action tokenizer for in-context imitation learning. We first propose a hierarchical approach, which consists of two successive levels of vector quantization. In particular, the lower level…

This paper proposes a Robust and Efficient Memory Network, referred to as REMN, for studying semi-supervised video object segmentation (VOS). Memory-based methods have recently achieved outstanding VOS performance by performing non-local…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Yadang Chen , Dingwei Zhang , Zhi-xin Yang , Enhua Wu

Despite advancements in user-guided video segmentation, extracting complex objects consistently for highly complex scenes is still a labor-intensive task, especially for production. It is not uncommon that a majority of frames need to be…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Maksym Bekuzarov , Ariana Bermudez , Joon-Young Lee , Hao Li

Current state-of-the-art Video Object Segmentation (VOS) methods rely on dense per-object mask annotations both during training and testing. This requires time-consuming and costly video annotation mechanisms. We propose a novel Point-VOS…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Idil Esen Zulfikar , Sabarinath Mahadevan , Paul Voigtlaender , Bastian Leibe

Semantic segmentation in videos has been a focal point of recent research. However, existing models encounter challenges when faced with unfamiliar categories. To address this, we introduce the Open Vocabulary Video Semantic Segmentation…

Multimedia · Computer Science 2024-12-13 Xinhao Li , Yun Liu , Guolei Sun , Min Wu , Le Zhang , Ce Zhu

One-shot Video Object Segmentation~(VOS) is the task of pixel-wise tracking an object of interest within a video sequence, where the segmentation mask of the first frame is given at inference time. In recent years, Recurrent Neural…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Fatemeh Azimi , Stanislav Frolov , Federico Raue , Joern Hees , Andreas Dengel

Video object segmentation is challenging due to the factors like rapidly fast motion, cluttered backgrounds, arbitrary object appearance variation and shape deformation. Most existing methods only explore appearance information between two…

Computer Vision and Pattern Recognition · Computer Science 2016-12-28 Kaihua Zhang , Xuejun Li , Qingshan Liu

Referring video object segmentation (R-VOS) is an emerging cross-modal task that aims to segment the target object referred by a language expression in all video frames. In this work, we propose a simple and unified framework built upon…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Jiannan Wu , Yi Jiang , Peize Sun , Zehuan Yuan , Ping Luo

Pre-trained vision-language models provide a robust foundation for efficient transfer learning across various downstream tasks. In the field of video action recognition, mainstream approaches often introduce additional modules to capture…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Haoxing Chen , Zizheng Huang , Yan Hong , Yanshuo Wang , Zhongcai Lyu , Zhuoer Xu , Jun Lan , Zhangxuan Gu

Unsupervised video object segmentation (VOS) aims to detect and segment the most salient object in videos. The primary techniques used in unsupervised VOS are 1) the collaboration of appearance and motion information; and 2) temporal fusion…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Suhwan Cho , Minhyeok Lee , Seunghoon Lee , Dogyoon Lee , Heeseung Choi , Ig-Jae Kim , Sangyoun Lee

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

Object state changes in video reveal critical cues about human and agent activity. However, existing methods are limited to temporal localization of when the object is in its initial state (e.g., cheese block) versus when it has completed a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Priyanka Mandikal , Tushar Nagarajan , Alex Stoken , Zihui Xue , Kristen Grauman

Instance segmentation is a form of image detection which has a range of applications, such as object refinement, medical image analysis, and image/video editing, all of which demand a high degree of accuracy. However, this precision is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Muhammed Korkmaz , T. Metin Sezgin

Vision Transformer (ViT) architectures represent images as collections of high-dimensional vectorized tokens, each corresponding to a rectangular non-overlapping patch. This representation trades spatial granularity for embedding…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Dong Lao , Yangchao Wu , Tian Yu Liu , Alex Wong , Stefano Soatto

This paper focuses on developing a more effective method of hierarchical propagation for semi-supervised Video Object Segmentation (VOS). Based on vision transformers, the recently-developed Associating Objects with Transformers (AOT)…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Zongxin Yang , Yi Yang

The task of video object segmentation with referring expressions (language-guided VOS) is to, given a linguistic phrase and a video, generate binary masks for the object to which the phrase refers. Our work argues that existing benchmarks…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Miriam Bellver , Carles Ventura , Carina Silberer , Ioannis Kazakos , Jordi Torres , Xavier Giro-i-Nieto

Human Motion Segmentation (HMS), which aims to partition videos into non-overlapping human motions, has attracted increasing research attention recently. Existing approaches for HMS are mainly dominated by subspace clustering methods, which…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Xianghan Meng , Zhengyu Tong , Zhiyuan Huang , Chun-Guang Li

Referring Video Object Segmentation (RVOS) aims to segment target objects in video sequences based on natural language descriptions. While recent advances in Multi-modal Large Language Models (MLLMs) have improved RVOS performance through…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Li Zhang , Haoxiang Gao , Zhihao Zhang , Luoxiao Huang , Tao Zhang

We present a novel approach to unsupervised learning for video object segmentation (VOS). Unlike previous work, our formulation allows to learn dense feature representations directly in a fully convolutional regime. We rely on uniform grid…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Nikita Araslanov , Simone Schaub-Meyer , Stefan Roth