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In this paper, we consider the problem of long-term point tracking, which requires consistent identification of points across multiple frames in a video, despite changes in appearance, lighting, perspective, and occlusions. We target online…

计算机视觉与模式识别 · 计算机科学 2025-01-31 Görkay Aydemir , Xiongyi Cai , Weidi Xie , Fatma Güney

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

We introduce AllTracker: a model that estimates long-range point tracks by way of estimating the flow field between a query frame and every other frame of a video. Unlike existing point tracking methods, our approach delivers…

This work presents a framework for tracking head movements and capturing the movements of the mouth and both the eyebrows in real-time. We present a head tracker which is a combination of a optical flow and a template based tracker. The…

计算机视觉与模式识别 · 计算机科学 2011-01-04 E. R. Gast , Michael S. Lew

Objects moving at high speed along complex trajectories often appear in videos, especially videos of sports. Such objects elapse non-negligible distance during exposure time of a single frame and therefore their position in the frame is not…

计算机视觉与模式识别 · 计算机科学 2020-06-03 Jan Kotera , Denys Rozumnyi , Filip Šroubek , Jiří Matas

In order to track the moving objects in long range against occlusion, interruption, and background clutter, this paper proposes a unified approach for global trajectory analysis. Instead of the traditional frame-by-frame tracking, our…

计算机视觉与模式识别 · 计算机科学 2015-02-03 Liang Lin , Yongyi Lu , Yan Pan , Xiaowu Chen

Can one perceive a video's content without seeing its pixels, just from the camera trajectory-the path it carves through space? This paper is the first to systematically investigate this seemingly implausible question. Towards this end, we…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Zihui Xue , Kristen Grauman , Dima Damen , Andrew Zisserman , Tengda Han

Motion estimation is one of the core challenges in computer vision. With traditional dual-frame approaches, occlusions and out-of-view motions are a limiting factor, especially in the context of environmental perception for vehicles due to…

计算机视觉与模式识别 · 计算机科学 2020-11-05 René Schuster , Christian Unger , Didier Stricker

With the advance of fluorescence imaging technologies, recently cell biologists are able to record the movement of protein vesicles within a living cell. Automatic tracking of the movements of these vesicles become key for qualitative…

定量方法 · 定量生物学 2015-06-09 Min Xu

Occlusions pose a significant challenge to optical flow algorithms that rely on local evidences. We consider an occluded point to be one that is imaged in the first frame but not in the next, a slight overloading of the standard definition…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Shihao Jiang , Dylan Campbell , Yao Lu , Hongdong Li , Richard Hartley

Video segmentation -- partitioning video frames into multiple segments or objects -- plays a critical role in a broad range of practical applications, from enhancing visual effects in movie, to understanding scenes in autonomous driving, to…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Tianfei Zhou , Fatih Porikli , David Crandall , Luc Van Gool , Wenguan Wang

The problem of Multiple Object Tracking (MOT) consists in following the trajectory of different objects in a sequence, usually a video. In recent years, with the rise of Deep Learning, the algorithms that provide a solution to this problem…

计算机视觉与模式识别 · 计算机科学 2019-11-21 Gioele Ciaparrone , Francisco Luque Sánchez , Siham Tabik , Luigi Troiano , Roberto Tagliaferri , Francisco Herrera

Video representation is a key challenge in many computer vision applications such as video classification, video captioning, and video surveillance. In this paper, we propose a novel approach for video representation that captures…

计算机视觉与模式识别 · 计算机科学 2019-05-14 Mohammadreza Babaee , David Full , Gerhard Rigoll

To overcome the problem of occlusion in visual tracking, this paper proposes an occlusion-aware tracking algorithm. The proposed algorithm divides the object into discrete image patches according to the pixel distribution of the object by…

计算机视觉与模式识别 · 计算机科学 2021-04-19 Rongtai Caiand Peng Zhu

Object tracking is the cornerstone of many visual analytics systems. While considerable progress has been made in this area in recent years, robust, efficient, and accurate tracking in real-world video remains a challenge. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2018-06-19 Saeed Ranjbar Alvar , Ivan V. Bajić

Object tracking is central to robot perception and scene understanding. Tracking-by-detection has long been a dominant paradigm for object tracking of specific object categories. Recently, large-scale pre-trained models have shown promising…

计算机视觉与模式识别 · 计算机科学 2024-01-26 Wen-Hsuan Chu , Adam W. Harley , Pavel Tokmakov , Achal Dave , Leonidas Guibas , Katerina Fragkiadaki

Object recognition in video is an important task for plenty of applications, including autonomous driving perception, surveillance tasks, wearable devices or IoT networks. Object recognition using video data is more challenging than using…

计算机视觉与模式识别 · 计算机科学 2020-09-24 Alberto Sabater , Luis Montesano , Ana C. Murillo

Visual object tracking is an important task in computer vision, which has many real-world applications, e.g., video surveillance, visual navigation. Visual object tracking also has many challenges, e.g., object occlusion and deformation. To…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Ruize Han , Wei Feng , Qing Guo , Qinghua Hu

Trajectory analysis is essential in many applications. In this paper, we address the problem of representing motion trajectories in a highly informative way, and consequently utilize it for analyzing trajectories. Our approach first…

计算机视觉与模式识别 · 计算机科学 2017-04-27 Weiyao Lin , Yang Zhou , Hongteng Xu , Junchi Yan , Mingliang Xu , Jianxin Wu , Zicheng Liu

Video super-resolution is currently one of the most active research topics in computer vision as it plays an important role in many visual applications. Generally, video super-resolution contains a significant component, i.e., motion…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Zhigang Tu , Hongyan Li , Wei Xie , Yuanzhong Liu , Shifu Zhang , Baoxin Li , Junsong Yuan