Two-step active contour method based on gradient flow

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 机器人学研究室

	Two-step active contour method based on gradient flow
	Zhu LL(朱琳琳); Fan BJ(范保杰); Tang YD(唐延东)
刊名	INDUSTRIAL ROBOT-AN INTERNATIONAL JOURNAL
	2010
卷号	37 期号:4 页码:364-371
关键词	Robotics Tracking Deformation Flow
ISSN号	0143-991X
产权排序	1
中文摘要	Purpose - Active contour can describe target's silhouette accurately and has been widely used in image segmentation and target tracking. Its main drawback is huge computation that is still not well resolved. The purpose of this paper is to optimize the evolving path of active contour, to reduce the computation cost and to make the evolution effectively. Design/methodology/approach - The contour-evolution process is separated into two steps: global translation and local deformation. The contour global translation and local deformation are realized by average and normal gradient flow of the evolving contour curve, respectively. Findings - When a contour is far away from the object to be segmented or tracked, the effective way of contour evolution is that it moves to the object without deformation first and then it deforms into the shape of the object when it moves on the object. Originality/value - The method presented in this paper can optimize the curve evolving path effectively without complicated calculation, such as rebuilding a new inner product, and its computation cost is largely reduced.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Industrial ; Robotics
研究领域[WOS]	Engineering ; Robotics
关键词[WOS]	IMAGE SEGMENTATION ; CURVE EVOLUTION ; SHAPES ; PRIORS ; MODELS ; SNAKES
收录类别	SCI ; EI
资助信息	This paper is funded by the Natural Science Foundation of China (Grant No. 60871078 and 50876110). The authors would like to thank Xiaomao Li, Jing Sun, and Wei Dong for their advice and support.
语种	英语
WOS记录号	WOS:000280442200006
公开日期	2012-05-29
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/7418]
专题	沈阳自动化研究所_机器人学研究室
推荐引用方式 GB/T 7714	Zhu LL,Fan BJ,Tang YD. Two-step active contour method based on gradient flow[J]. INDUSTRIAL ROBOT-AN INTERNATIONAL JOURNAL,2010,37(4):364-371.
APA	Zhu LL,Fan BJ,&Tang YD.(2010).Two-step active contour method based on gradient flow.INDUSTRIAL ROBOT-AN INTERNATIONAL JOURNAL,37(4),364-371.
MLA	Zhu LL,et al."Two-step active contour method based on gradient flow".INDUSTRIAL ROBOT-AN INTERNATIONAL JOURNAL 37.4(2010):364-371.