18 January 2006 Estimating the analog perimeter of a pre-digitized shape
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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.
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Samuel C. Lee, Samuel C. Lee, Yiming Wang, Yiming Wang, Elisa T. Lee, Elisa T. Lee, } "Estimating the analog perimeter of a pre-digitized shape", Proc. SPIE 6066, Vision Geometry XIV, 60660D (18 January 2006); doi: 10.1117/12.643528; https://doi.org/10.1117/12.643528

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