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Optical Engineering

Adaptive vertex selection based on interregion contrast for polygon-based contour approximation
Author(s): Si-Woong Lee; Hyun Soo Kang; Byoung-Ju Yun; Jae Gark Choi; Sung Hoon Hong
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Paper Abstract

We present a new vertex selection scheme for polygon-based contour coders. When contour coding is used for image coding applications, it is argued that partitioning a contour into partial segments and then approximating these segments with a variable accuracy is required to efficiently handle their relative significance. Accordingly, a decision rule for the allowable maximum distortion (dmax) is derived based on interregion contrasts, and an adaptive vertex selection method is proposed based on the derived rule. Experimental results are presented to show the superiority of the proposed method over conventional methods.

Paper Details

Date Published: 1 January 2004
PDF: 7 pages
Opt. Eng. 43(1) doi: 10.1117/1.1626666
Published in: Optical Engineering Volume 43, Issue 1
Show Author Affiliations
Si-Woong Lee, Hanbat National Univ. (South Korea)
Hyun Soo Kang, Chung-Ang Univ. (South Korea)
Byoung-Ju Yun, Kyungpook National Univ. (Korea)
Jae Gark Choi, Dongeui Univ. (South Korea)
Sung Hoon Hong, Chonnam National Univ. (South Korea)

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