| Adaptive B-snake for planar curve approximation |
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| 作者姓名： | CHENG Si-yuan ZHANG Xiang-wei HUANG Man-hui |
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| 作者单位： | [1]Faculty of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510090, P.R. China [2]Guangdong Business College, Guangzhou 510320, P.R. China |
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| 基金项目： | Funded by the Natural Science Foundation of Guangdong Province （No. 04105386,5300090）. |
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| 摘 要： | 1 Introduction a Planar curve approximation is a crucial issue in many applications of computer graphics, computer vision, CAD/CAM, image processing, etc., and there have been many reports in the literature on solving the curve approximation problem by using the B-splines. However, most of the existing methods required parameterization of data points on the target curve. It is a difficult task to estimate these parameters and different parameter choices may largely affect the approximation …
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| 关 键 词： | B样条逼近 平面曲线逼近 主动轮廓模型 B样条曲线 CAD |
| 文章编号： | 1671-8224（2005）04-0185-04 |
| 收稿时间： | 2005-07-09 |
| 修稿时间： | 2005-10-09 |
Adaptive B-snake for planar curve approximation |
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| CHENG Si-yuan ZHANG Xiang-wei HUANG Man-hui.Adaptive B-snake for planar curve approximation[J].Journal of Chongqing University,2005,4(4):185-188. |
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| Authors: | CHENG Si-yuan ZHANG Xiang-wei HUANG Man-hui |
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| Abstract: | An adaptive B-spline active contour model for planar curve approximation is proposed. Starting with an initial B-spline curve, the finite element method is adopted to make the active B-spline curve converge towards the target curve without the need of data points parameterization. A strategy of automatic control point insertion during the B-spline active contour deformation, adaptive to the shape of the planar curve, is also given. Experimental results show that this method is efficient and accurate in planar curve approximation. |
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| Keywords: | active contour model B-spline curve approximation |
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