A block-based background model for moving object detection

Electronic Letters on Computer Vision and Image Analysis: ELCVIA

Driss Moujahid¹  Abdelghafour Abbad¹  Jamal Riffi¹  Omar Elharrouss¹  Hamid Tairi¹ 

[1] LIIAN Laboratory, Department of Informatics Faculty of Sciences Dhar-MahrazUniversity of Sidi Mohamed Ben AbdellahFez, Morocco

关键词: Motion detection;    Background subtraction;    Background model;    Background update;    Video surveillance.;   

DOI  :  10.5565/rev/elcvia.855

学科分类：计算机科学（综合）

来源: ELCVIA

【 摘 要 】

Detecting the moving objects in a video sequence using a stationary camera is an important task for many computer vision applications. This paper proposes a background subtraction approach. As first step, the background is initialized using the block-based analysis before being updated in each incoming frame. Our background frame is generated by collecting the blocks background candidates. The block candidate selection is based on probability density function(pdf)computation. After that, the absolute difference between the background frame and each frame of sequence is computed. A noise filter is applied using the Structure/Texture decomposition in order to minimize the noise caused by background subtraction operation. The binary motion mask is formed using an adaptive threshold that was deduced from the weighted mean and variance calculation. To assure the correspondence between the current frame and the background frame, an adaptation of background model in each incoming frame is realized. After comparing results obtained from the proposed method to other existing ones, it was shown that our approach attains a higher degree of efficacy

【 授权许可】

CC BY-NC-ND