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Multi-scale curve decomposition based on alpha-shape

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In cartography curve simplification is a recurrent problem. The purpose is to remove irrelevant details while emphasizing the main features of the curve. Decomposition of curve is preprocessing of curve simplification. Most of the current techniques belong to the spatial domain (least square method, active contour, point selection). However, some techniques applying to the frequency domain (Fourier transform, wavelets) have also been introduced. This paper presents a new frequency method for curve decomposition based on alpha shape. It firstly utilizes the alpha shape to extract the envelope of the curve. And then, the filtered medial axis transform (FMAT) generate the base layer. By using different alpha values, we can get base layer in different scales. Future directions for work are presented at the end of this paper.

源语言英语
主期刊名Proceedings - 2011 8th International Symposium on Voronoi Diagrams in Science and Engineering, ISVD 2011
112-116
页数5
DOI
出版状态已出版 - 2011
活动2011 8th International Symposium on Voronoi Diagrams in Science and Engineering, ISVD 2011 - Qingdao, 中国
期限: 28 6月 201130 6月 2011

出版系列

姓名Proceedings - 2011 8th International Symposium on Voronoi Diagrams in Science and Engineering, ISVD 2011

会议

会议2011 8th International Symposium on Voronoi Diagrams in Science and Engineering, ISVD 2011
国家/地区中国
Qingdao
时期28/06/1130/06/11

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