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Segmenting foreground object from a video is a challenging task because of the large deformations of the objects, occlusions, and background clutter. In this paper, we propose a frame-by-frame but computationally efficient approach for…

Computer Vision and Pattern Recognition · Computer Science 2017-06-30 Aditya Vora , Shanmuganathan Raman

Referring Video Object Segmentation (RVOS) requires segmenting specific objects in a video guided by a natural language description. The core challenge of RVOS is to anchor abstract linguistic concepts onto a specific set of pixels and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Zanyi Wang , Dengyang Jiang , Liuzhuozheng Li , Sizhe Dang , Chengzu Li , Harry Yang , Guang Dai , Mengmeng Wang , Jingdong Wang

Motion representation plays a vital role in human action recognition in videos. In this study, we introduce a novel compact motion representation for video action recognition, named Optical Flow guided Feature (OFF), which enables the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Shuyang Sun , Zhanghui Kuang , Wanli Ouyang , Lu Sheng , Wei Zhang

Video amodal segmentation is a particularly challenging task in computer vision, which requires to deduce the full shape of an object from the visible parts of it. Recently, some studies have achieved promising performance by using motion…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Ke Fan , Jingshi Lei , Xuelin Qian , Miaopeng Yu , Tianjun Xiao , Tong He , Zheng Zhang , Yanwei Fu

Contemporary state-of-the-art video object segmentation (VOS) models compare incoming unannotated images to a history of image-mask relations via affinity or cross-attention to predict object masks. We refer to the internal memory state of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Clayton Bromley , Alexander Moore , Amar Saini , Douglas Poland , Carmen Carrano

In this paper, we show that transferring knowledge from other domains of video understanding combined with large-scale learning can improve robustness of Video Object Segmentation (VOS) under complex circumstances. Namely, we focus on…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Volodymyr Fedynyak , Yaroslav Romanus , Oles Dobosevych , Igor Babin , Roman Riazantsev

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

Humans can easily segment moving objects without knowing what they are. That objectness could emerge from continuous visual observations motivates us to model grouping and movement concurrently from unlabeled videos. Our premise is that a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Runtao Liu , Zhirong Wu , Stella X. Yu , Stephen Lin

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

This paper presents a novel approach for segmenting moving objects in unconstrained environments using guided convolutional neural networks. This guiding process relies on foreground masks from independent algorithms (i.e. state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Diego Ortego , Kevin McGuinness , Juan C. SanMiguel , Eric Arazo , José M. Martínez , Noel E. O'Connor

We present an algorithm (SOFAS) to estimate the optical flow of events generated by a dynamic vision sensor (DVS). Where traditional cameras produce frames at a fixed rate, DVSs produce asynchronous events in response to intensity changes…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Timo Stoffregen , Lindsay Kleeman

Optical flow and disparity are two informative visual features for autonomous driving perception. They have been used for a variety of applications, such as obstacle and lane detection. The concept of "U-V-Disparity" has been widely…

Robotics · Computer Science 2023-08-04 Yi Feng , Ruge Zhang , Jiayuan Du , Qijun Chen , Rui Fan

Unsupervised Video Object Segmentation (UVOS) refers to the challenging task of segmenting the prominent object in videos without manual guidance. In recent works, two approaches for UVOS have been discussed that can be divided into:…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Seunghoon Lee , Suhwan Cho , Dogyoon Lee , Minhyeok Lee , Sangyoun Lee

Real-time computational speed and a high degree of precision are requirements for computer-assisted interventions. Applying a segmentation network to a medical video processing task can introduce significant inter-frame prediction noise.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Robert Mendel , Tobias Rueckert , Dirk Wilhelm , Daniel Rueckert , Christoph Palm

This work addresses motion-guided few-shot video object segmentation (FSVOS), which aims to segment dynamic objects in videos based on a few annotated examples with the same motion patterns. Existing FSVOS datasets and methods typically…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Kaining Ying , Hengrui Hu , Henghui Ding

Interactive Video Object Segmentation (iVOS) is a challenging task that requires real-time human-computer interaction. To improve the user experience, it is important to consider the user's input habits, segmentation quality, running time…

Computer Vision and Pattern Recognition · Computer Science 2025-02-10 Kexin Li , Tao Jiang , Zongxin Yang , Yi Yang , Yueting Zhuang , Jun Xiao

Objective Semi-supervised video object segmentation refers to segmenting the object in subsequent frames given the object label in the first frame. Existing algorithms are mostly based on the objectives of matching and propagation…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Zhang Xuerui , Yuan Xia

Surgical instrument segmentation in laparoscopy is essential for computer-assisted surgical systems. Despite the Deep Learning progress in recent years, the dynamic setting of laparoscopic surgery still presents challenges for precise…

We propose a new multi-frame method for efficiently computing scene flow (dense depth and optical flow) and camera ego-motion for a dynamic scene observed from a moving stereo camera rig. Our technique also segments out moving objects from…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Tatsunori Taniai , Sudipta N. Sinha , Yoichi Sato

This paper presents a method for automatic video object segmentation based on the fusion of motion stream, appearance stream, and instance-aware segmentation. The proposed scheme consists of a two-stream fusion network and an instance…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Sungkwon Choo , Wonkyo Seo , Nam Ik Cho