Optical-flow field based snake algorithm

doi:10.3778/j.issn.1002-8331.2008.28.055

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (28): 166-168.DOI: 10.3778/j.issn.1002-8331.2008.28.055

• 图形、图像、模式识别 • Previous Articles Next Articles

Optical-flow field based snake algorithm

NIE Xuan¹,WU Cheng-fu²

1.College of Software and Microelectronics，Northwestern Polytechnical University，Xi’an 710072，China
2.National Laboratory of UAV Special Technology，Northwestern Polytechnical University，Xi’an 710065，China

Received:2008-05-05 Revised:2008-07-25 Online:2008-10-01 Published:2008-10-01
Contact: NIE Xuan

一种基于运动场的snake算法

聂烜¹,吴成富²

1.西北工业大学软件与微电子学院，西安 710072
2.西北工业大学无人机特种技术国家重点实验室，西安 710065

通讯作者: 聂烜

Abstract

Abstract: On the basis of optical flow field computation，we redefine outer energy function in the general snake model and utilize motion vector of light-fluid field to predict the initial values of snake algorithm in subsequent frames.Hence，fast extraction of objective contour is achieved.

Key words: snake model, optical flow, motion vector

摘要： 在计算光流场的基础上，提出了snake算法中一种新的外部能量函数，并利用光流场的运动矢量来预测下帧图像中snake的初始值，不仅与无预测的算法相比能提高收敛的速度，而且收敛结果更贴近于目标的本身。实验证明了该文算法的优越性。

关键词: snake模型, 光流场, 运动矢量

NIE Xuan¹,WU Cheng-fu². Optical-flow field based snake algorithm[J]. Computer Engineering and Applications, 2008, 44(28): 166-168.

聂烜¹,吴成富². 一种基于运动场的snake算法[J]. 计算机工程与应用, 2008, 44(28): 166-168.

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Optical-flow field based snake algorithm

一种基于运动场的snake算法

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