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Proceedings Paper

Estimating the analog perimeter of a pre-digitized shape
Author(s): Samuel C. Lee; Yiming Wang; Elisa T. Lee
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Paper Abstract

Given a general digital shape of high-resolution, its analog perimeter of the pre-digitized shape (APPS) can be adequately estimated using the classic chain-code based methods. For a digital shape of low resolution, however, these methods may not provide accurate or consistent estimates due to the variations of APPS with shape orientations, which are inversely proportional to the digitization resolutions. Aiming at improving the accuracy and consistency in estimating APPS for low-resolution digital shapes, this paper presents a method to find the median values of digital perimeter curves (DPC) obtained from rotating the shapes. Examples are given to illustrate the proposed method.

Paper Details

Date Published: 18 January 2006
PDF: 9 pages
Proc. SPIE 6066, Vision Geometry XIV, 60660D (18 January 2006); doi: 10.1117/12.643528
Show Author Affiliations
Samuel C. Lee, Univ. of Oklahoma (United States)
Yiming Wang, Univ. of Oklahoma (United States)
Elisa T. Lee, Univ. of Oklahoma (United States)


Published in SPIE Proceedings Vol. 6066:
Vision Geometry XIV
Longin Jan Latecki; David M. Mount; Angela Y. Wu, Editor(s)

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