A new adaptive B-spline VFC snake for object contour extraction

Hoang Nam Nguyen*, An-Chen Lee

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

We propose a new adaptive B-spline VFC Snake model for object contour extraction. Bing Li et al. proposed vector field convolution (VFC) snake which has the advantages of superior noise robustness, reducing computational cost, and large capture range. However, it suffers from slow convergence speed due to large number of control points, as well as from difficulties in determining the weight factors associated to the internal energies constraining the smoothness of the curve. There is also no relevant criterion to determine the number of control points in VFC snake method. Our alternative approach expresses the curve as a non-uniform B-spline, in which fewer parameters are required and most importantly, internal energy calculation is eliminated because the smoothness is implicitly built into the model. A novel formulation of control points' movement estimation was established based on the least square fitting of non-uniform B-spline curve and VFC external force for the snake evolution process. A novel strategy of adding control points quickly matches the snake to desired complex shapes. Experimental results demonstrate the capability of adaptive shape description with high convergence speed of the proposed model.

原文English
主出版物標題Computational Collective Intelligence
主出版物子標題Technologies and Applications - Second International Conference, ICCCI 2010, Proceedings
頁面29-36
頁數8
版本PART 3
DOIs
出版狀態Published - 3 12月 2010
事件2nd International Conference on Computational Collective Intelligence - Technologies and Applications, ICCCI 2010 - Kaohsiung, Taiwan
持續時間: 10 11月 201012 11月 2010

出版系列

名字Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
號碼PART 3
6423 LNAI
ISSN(列印)0302-9743
ISSN(電子)1611-3349

Conference

Conference2nd International Conference on Computational Collective Intelligence - Technologies and Applications, ICCCI 2010
國家/地區Taiwan
城市Kaohsiung
期間10/11/1012/11/10

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