Author Login Editor-in-Chief Peer Review Editor Work Office Work

Computer Engineering ›› 2011, Vol. 37 ›› Issue (22): 159-161. doi: 10.3969/j.issn.1000-3428.2011.22.052

• Networks and Communications • Previous Articles     Next Articles

Background Extraction and Update Algorithm Based on Frame-difference

FAN Xiao-liang, YANG Jin-ji   

  1. (School of Computer, South China Normal University, Guangzhou 510631, China)
  • Received:2011-05-26 Online:2011-11-18 Published:2011-11-20

基于帧间差分的背景提取与更新算法

樊晓亮,杨晋吉   

  1. (华南师范大学计算机学院,广州 510631)
  • 作者简介:樊晓亮(1986-),男,硕士研究生,主研方向:智能多媒体技术,视频图像处理;杨晋吉,教授、博士
  • 基金资助:
    广东省科技计划基金资助项目(2007B010400068)

Abstract: In view of the distortional background extracted by time-averaged method, an improved algorithm that combined with the frame- difference method is presented in this paper. During background updating, this paper uses multi-level background update strategy, it can avoid the effect of new objects to the background and eliminate the ghosts caused by the move-away of background objects or by the move-in of foreground objects. Experimental result shows that the proposed algorithm can be used to extract backgrounds effectively and quickly when the scene changes, and it has better effect .

Key words: moving object, background extraction, time-averaged method, frame-difference, background update

摘要: 当运动目标较多时,时间平均法提取的背景存在模糊和拖影现象。为此,提出一种基于帧间差分的背景提取与更新算法。该算法采用基于像素级和帧级的多级自适应背景更新策略,能够克服光线缓慢变化和剧烈变化对背景的影响,并及时消除由于物体移入和移除产生的鬼影。实验结果表明,该算法能快速有效地对背景进行更新,提取的背景图像效果较好。

关键词: 运动目标, 背景提取, 时间平均法, 帧间差分, 背景更新

CLC Number: