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Due to the problem of performance constraints of unsupervised video object detection, its large-scale application is limited. In response to this pain point, we propose another excellent method to solve this problematic point. By…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Chao Hu , Liqiang Zhu

Recent advances in video processing utilizing deep learning primitives achieved breakthroughs in fundamental problems in video analysis such as frame classification and object detection enabling an array of new applications. In this paper…

Databases · Computer Science 2020-02-26 Nick Koudas , Raymond Li , Ioannis Xarchakos

This paper presents a novel yet intuitive approach to unsupervised feature learning. Inspired by the human visual system, we explore whether low-level motion-based grouping cues can be used to learn an effective visual representation.…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Deepak Pathak , Ross Girshick , Piotr Dollár , Trevor Darrell , Bharath Hariharan

We propose a multiple instance learning approach to content-based retrieval of classroom video for the purpose of supporting human assessing the learning environment. The key element of our approach is a mapping between the semantic…

Information Retrieval · Computer Science 2014-03-26 Qifeng Qiao , Peter A. Beling

Field-captured video facilitates detailed studies of spatio-temporal aspects of animal locomotion, decision-making and environmental interactions including predator-prey relationships and habitat utilisation. But even though data capture is…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Malika Nisal Ratnayake , Lex Gallon , Adel N. Toosi , Alan Dorin

Nowadays, eye tracking is the most used technology to detect areas of interest. This kind of technology requires specialized equipment recording user's eyes. In this paper, we propose SneakPeek, a different approach to detect areas of…

Information Retrieval · Computer Science 2017-12-12 Daniyal Shahrokhian , Alejandro Vera de Juan

Event cameras provide rich signals that are suitable for motion estimation since they respond to changes in the scene. As any visual changes in the scene produce event data, it is paramount to classify the data into different motions (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Ryo Yamaki , Shintaro Shiba , Guillermo Gallego , Yoshimitsu Aoki

We share the implementation details and testing results for video retrieval system based exclusively on features extracted by convolutional neural networks. We show that deep learned features might serve as universal signature for semantic…

Information Retrieval · Computer Science 2016-01-29 Anna Podlesnaya , Sergey Podlesnyy

We present a novel method of integrating motion and appearance cues for foreground object segmentation in unconstrained videos. Unlike conventional methods encoding motion and appearance patterns individually, our method puts particular…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Chunchao Guo , Jianhuang Lai , Xiaohua Xie

Video object detection is a fundamental problem in computer vision and has a wide spectrum of applications. Based on deep networks, video object detection is actively studied for pushing the limits of detection speed and accuracy. To reduce…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Xinggang Wang , Zhaojin Huang , Bencheng Liao , Lichao Huang , Yongchao Gong , Chang Huang

Videos are more informative than images because they capture the dynamics of the scene. By representing motion in videos, we can capture dynamic activities. In this work, we introduce GPT-4 generated motion descriptions that capture…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Chinmaya Devaraj , Cornelia Fermuller , Yiannis Aloimonos

We present a general framework and method for simultaneous detection and segmentation of an object in a video that moves (or comes into view of the camera) at some unknown time in the video. The method is an online approach based on motion…

Computer Vision and Pattern Recognition · Computer Science 2016-05-25 Dong Lao , Ganesh Sundaramoorthi

Video privacy leakage is becoming an increasingly severe public problem, especially in cloud-based video surveillance systems. It leads to the new need for secure cloud-based video applications, where the video is encrypted for privacy…

Image and Video Processing · Electrical Eng. & Systems 2021-08-31 Xianhao Tian , Peijia Zheng , Jiwu Huang

The tracking-by-detection paradigm today has become the dominant method for multi-object tracking and works by detecting objects in each frame and then performing data association across frames. However, its sequential frame-wise matching…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Sanghyun Woo , Kwanyong Park , Seoung Wug Oh , In So Kweon , Joon-Young Lee

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

Object segmentation and object tracking are fundamental research area in the computer vision community. These two topics are diffcult to handle some common challenges, such as occlusion, deformation, motion blur, and scale variation. The…

Computer Vision and Pattern Recognition · Computer Science 2019-04-29 Rui Yao , Guosheng Lin , Shixiong Xia , Jiaqi Zhao , Yong Zhou

Motions are reflected in videos as the movement of pixels, and actions are essentially patterns of inconsistent motions between the foreground and the background. To well distinguish the actions, especially those with complicated…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Ziyuan Huang , Shiwei Zhang , Jianwen Jiang , Mingqian Tang , Rong Jin , Marcelo Ang

The task of action recognition or action detection involves analyzing videos and determining what action or motion is being performed. The primary subject of these videos are predominantly humans performing some action. However, this…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Amlaan Bhoi

A main goal in developing video-compression algorithms is to enhance human-perceived visual quality while maintaining file size. But modern video-analysis efforts such as detection and recognition, which are integral to video surveillance…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Mikhail Dremin , Konstantin Kozhemyakov , Ivan Molodetskikh , Malakhov Kirill , Artur Sagitov , Dmitriy Vatolin

Animals have evolved highly functional visual systems to understand motion, assisting perception even under complex environments. In this paper, we work towards developing a computer vision system able to segment objects by exploiting…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Charig Yang , Hala Lamdouar , Erika Lu , Andrew Zisserman , Weidi Xie