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Repeatedly smoothing, discrete scale-space evolution and dominant point detection | |
Li, BC | |
发表期刊 | PATTERN RECOGNITION |
1996-06-01 | |
卷号 | 29期号:6页码:1049-1059 |
文章类型 | Article |
摘要 | In this paper, the Fourier analysis is used to derive the properties of an evolving curve. An arbitrary-kernel-repeatedly-smoothing (AKRS) evolution of a curve is then introduced. It is shown that when the repeated number is large, the AKRS evolution of a curve is an approximately discrete implementation of the scale-based evolution of this curve in the Euclidean space. As a special case, an exponential repeatedly smoothing is proposed to implement the scale-based evolution. It is shown that in addition to its simple implementation and its desired approximation to a Gaussian kernel, an exponential function is a function that when it is selected as a repeatedly smoothing kernel, the motion (both magnitude and direction) of a point on a curve from the (i - 1)th to ith instant is equal to the curvature of the ith smoothed curve at this point. Finally, a perimeter-controlled-evolution method is proposed to extract dominant points. It is shown experimentally that the proposed method is robust to noise, object rotation and object changes in sizes. (C) 1996 Pattern Recognition Society. Published by Elsevier Science Ltd. |
关键词 | Dominant Point Detection Curve Evolution In Scale Space Exponential Kernel Diffusion Equation Repeatedly Smoothing Curvature |
WOS标题词 | Science & Technology ; Technology |
关键词[WOS] | CORNER DETECTION ; PLANE-CURVES ; REPRESENTATION |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Computer Science ; Engineering |
WOS类目 | Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic |
WOS记录号 | WOS:A1996UN18400012 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/21901 |
专题 | 09年以前成果 |
作者单位 | CHINESE ACAD SCI,INST AUTOMAT,NATL LAB PATTERN RECOGNIT,BEIJING,PEOPLES R CHINA |
推荐引用方式 GB/T 7714 | Li, BC. Repeatedly smoothing, discrete scale-space evolution and dominant point detection[J]. PATTERN RECOGNITION,1996,29(6):1049-1059. |
APA | Li, BC.(1996).Repeatedly smoothing, discrete scale-space evolution and dominant point detection.PATTERN RECOGNITION,29(6),1049-1059. |
MLA | Li, BC."Repeatedly smoothing, discrete scale-space evolution and dominant point detection".PATTERN RECOGNITION 29.6(1996):1049-1059. |
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