A New Vertex Adjustment Method for Polygon-Based Shape Coding

Byoung-Ju YUN  Jae-Soo CHO  Yun-Ho KO  

IEICE TRANSACTIONS on Information and Systems   Vol.E89-D   No.10   pp.2693-2695
Publication Date: 2006/10/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e89-d.10.2693
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Image Processing and Video Processing
shape coding,  contour coding,  object oriented coding,  polygonal approximation,  

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In this paper, we propose a new vertex adjustment method which is based on the size ratio of an object and that of a polygon. In the conventional polygonal approximation methods, the sizes of an object and an approximating polygon are quite different, therefore there are so many error pixels between them. The proposed method reduces the size of error regions by adjusting the size of the polygon to that of an object. Simulation results show outstanding performance of the proposed method.