首页 | 本学科首页   官方微博 | 高级检索  
     

复杂场景中基于变块差分的运动目标检测
引用本文:朱娟娟,郭宝龙.复杂场景中基于变块差分的运动目标检测[J].光学精密工程,2011,19(1):183-191.
作者姓名:朱娟娟  郭宝龙
作者单位:西安电子科技大学,机电工程学院,陕西,西安,710071
基金项目:国家自然科学基金资助项目(No.61003196);高校基本科研业务费专项资助项目(No.K50510040004)
摘    要:针对复杂场景中包含的摄像机扫描运动、随机抖动和目标运动,提出一种基于帧间可变块差分的运动目标检测算法.首先,利用全局特征点估计运动参数对帧间背景进行补偿,提取图像的全局特征点并匹配,以特征点集的最小位置误差和作为目标进行迭代,获取误差不大于0.5 pixel的全局运动参数,并精确补偿当前帧实现背景校正.然后,利用可变块...

关 键 词:视频图像  运动目标检测  可变块差分  全局运动估计  帧间补偿
收稿时间:2010-04-01
修稿时间:2010-06-25

Moving object detection based on variant block difference in complex scenes
ZHU Juan-juan,GUO Bao-long.Moving object detection based on variant block difference in complex scenes[J].Optics and Precision Engineering,2011,19(1):183-191.
Authors:ZHU Juan-juan  GUO Bao-long
Affiliation:School of Electromechanical Engineering, Xidian University, Xi’an 710071, China
Abstract:A fast moving-object detection algorithm based on inter-frame Variant Compensated Blocks Difference(VCBD) is presented to deal with the complex scenes with camera scan, dithering and object moving. Firstly, the global motion estimation is performed based on feature points to compensate the inter-frame background. The global feature points in a reference image are selected and matched in a current image. Then, the iteration is applied to realize the minimum sum of position errors of all matched points and to obtain the global motion parameter with the accuracy less than 0.5 pixel. Accordingly, the current frame is compensated to match the background area. Finally, the adaptive variant block difference is proposed to detect moving objects. The whole image is classified into background, foreground and boundary areas and the block is then judged with the threshold and divided into four blocks. These coarse-to-fine steps can greatly improve the velocity and veracity of detection. Experimental results show that the algorithm can detect moving objects in camera scan and dithering sequences and the processing speed achieves 25 frame/s.
Keywords:video image  moving object detection  variant block difference  global motion estimation  inter-frame compensation
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《光学精密工程》浏览原始摘要信息
点击此处可从《光学精密工程》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号