Adaptive vertex selection based on interregion contrast for polygon-based contour approximation

Si-Woong Lee; Hyun Soo Kang; Byoung-Ju Yun; Jae Gark Choi; Sung Hoon Hong

doi:10.1117/1.1626666

1 January 2004 Adaptive vertex selection based on interregion contrast for polygon-based contour approximation

Si-Woong Lee, Hyun Soo Kang, Byoung-Ju Yun, Jae Gark Choi, Sung Hoon Hong

Optical Engineering, Vol. 43, Issue 1, (January 2004). https://doi.org/10.1117/1.1626666

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 (d_max) 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.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Si-Woong Lee, Hyun Soo Kang, Byoung-Ju Yun, Jae Gark Choi, and Sung Hoon Hong "Adaptive vertex selection based on interregion contrast for polygon-based contour approximation," Optical Engineering 43(1), (1 January 2004). https://doi.org/10.1117/1.1626666

Published: 1 January 2004

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KEYWORDS

Image segmentation

Image compression

Optical engineering

Communication engineering

Computer engineering

Distortion

Image processing

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