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In many advanced video based applications background modeling is a pre-processing step to eliminate redundant data, for instance in tracking or video surveillance applications. Over the past years background subtraction is usually based on…

计算机视觉与模式识别 · 计算机科学 2018-07-18 Maryam Sultana , Arif Mahmood , Sajid Javed , Soon Ki Jung

Real-time moving object detection in unconstrained scenes is a difficult task due to dynamic background, changing foreground appearance and limited computational resource. In this paper, an optical flow based moving object detection…

计算机视觉与模式识别 · 计算机科学 2018-07-16 Junjie Huang , Wei Zou , Jiagang Zhu , Zheng Zhu

Establishing the correspondences between newly acquired points and historically accumulated data (i.e., map) through nearest neighbors search is crucial in numerous robotic applications. However, static tree data structures are inadequate…

机器人学 · 计算机科学 2024-03-01 Jun Zhu , Hongyi Li , Zhepeng Wang , Shengjie Wang , Tao Zhang

In light of the success of contrastive learning in the image domain, current self-supervised video representation learning methods usually employ contrastive loss to facilitate video representation learning. When naively pulling two…

计算机视觉与模式识别 · 计算机科学 2022-03-15 Shuangrui Ding , Maomao Li , Tianyu Yang , Rui Qian , Haohang Xu , Qingyi Chen , Jue Wang , Hongkai Xiong

We present a method for compositing virtual objects into a photograph such that the object colors appear to have been processed by the photo's camera imaging pipeline. Compositing in such a camera-aware manner is essential for high realism,…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Jun Gao , Xiao Li , Liwei Wang , Sanja Fidler , Stephen Lin

Identifying moving objects in a video sequence, which is produced by a static camera, is a fundamental and critical task in many computer-vision applications. A common approach performs background subtraction, which identifies moving…

计算机视觉与模式识别 · 计算机科学 2013-05-02 Dina Dushnik , Alon Schclar , Amir Averbuch

This paper presents a method to differentiate the foreground objects from the background of a color image. Firstly a color image of any size is input for processing. The algorithm converts it to a grayscale image. Next we apply canny edge…

计算机视觉与模式识别 · 计算机科学 2015-06-30 Subhajit Adhikari , Joydeep Kar , Jayati Ghosh Dastidar

This paper proposes a novel approach to create an automated visual surveillance system which is very efficient in detecting and tracking moving objects in a video captured by moving camera without any apriori information about the captured…

计算机视觉与模式识别 · 计算机科学 2017-06-09 Kumar S. Ray , Soma Chakraborty

The exponentially increasing use of moving platforms for video capture introduces the urgent need to develop the general background subtraction algorithms with the capability to deal with the moving background. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2017-09-06 Yizhe Zhu , Ahmed Elgammal

For many tracking and surveillance applications, background subtraction provides an effective means of segmenting objects moving in front of a static background. Researchers have traditionally used combinations of morphological operations…

计算机视觉与模式识别 · 计算机科学 2014-11-17 Nicholas R. Howe , Alexandra Deschamps

We consider the problem of providing dense segmentation masks for object discovery in videos. We formulate the object discovery problem as foreground motion clustering, where the goal is to cluster foreground pixels in videos into different…

计算机视觉与模式识别 · 计算机科学 2019-04-08 Christopher Xie , Yu Xiang , Zaid Harchaoui , Dieter Fox

Cutting out an object and estimating its opacity mask, known as image matting, is a key task in many image editing applications. Deep learning approaches have made significant progress by adapting the encoder-decoder architecture of…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Marco Forte , François Pitié

We present an MPI-parallel algorithm for the in-situ visualization of computational data that is built around a distributed linear forest-of-octrees data structure. Such octrees are frequently used in element-based numerical simulations;…

分布式、并行与集群计算 · 计算机科学 2018-09-06 Carsten Burstedde

A robust and efficient anomaly detection technique is proposed, capable of dealing with crowded scenes where traditional tracking based approaches tend to fail. Initial foreground segmentation of the input frames confines the analysis to…

计算机视觉与模式识别 · 计算机科学 2013-04-04 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

"Background subtraction" is an old technique for finding moving objects in a video sequence for example, cars driving on a freeway. The idea is that subtracting the current image from a timeaveraged background image will leave only…

计算机视觉与模式识别 · 计算机科学 2013-02-08 Nir Friedman , Stuart Russell

General object detectors use powerful backbones that uniformly extract features from images for enabling detection of a vast amount of object types. However, utilization of such backbones in object detection applications developed for…

计算机视觉与模式识别 · 计算机科学 2021-08-04 Alexandra Dana , Maor Shutman , Yotam Perlitz , Ran Vitek , Tomer Peleg , Roy J Jevnisek

We investigate the problem of automatically placing an object into a background image for image compositing. Given a background image and a segmented object, the goal is to train a model to predict plausible placements (location and scale)…

计算机视觉与模式识别 · 计算机科学 2023-04-10 Sijie Zhu , Zhe Lin , Scott Cohen , Jason Kuen , Zhifei Zhang , Chen Chen

We present a deblurring method for scenes with occluding objects using a carefully designed layered blur model. Layered blur model is frequently used in the motion deblurring problem to handle locally varying blurs, which is caused by…

计算机视觉与模式识别 · 计算机科学 2016-11-30 Byeongjoo Ahn , Tae Hyun Kim , Wonsik Kim , Kyoung Mu Lee

This paper investigates the principles of embedding learning to tackle the challenging semi-supervised video object segmentation. Unlike previous practices that focus on exploring the embedding learning of foreground object (s), we consider…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Zongxin Yang , Yunchao Wei , Yi Yang

Video segmentation consists of a frame-by-frame selection process of meaningful areas related to foreground moving objects. Some applications include traffic monitoring, human tracking, action recognition, efficient video surveillance, and…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Daniel F. S. Santos , Rafael G. Pires , Danilo Colombo , João P. Papa