Adaptive circular enclosure colour distribution geometrical model utilizing point-in-polygon for segregation between lips and skin pixels

Lee, Hao Wei and Seng, Kah Phooi * and Chia, Wai Chong * and Ang, Li-Minn (2012) Adaptive circular enclosure colour distribution geometrical model utilizing point-in-polygon for segregation between lips and skin pixels. In: International Conference on Information and Multimedia Technology (4th), 21 - 22 Dec 2012, Seri Kembangan, Selangor, Malaysia. (Submitted)

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Chia Wai Chong - Adaptive Circular Enclosure Colour Distribution Geometrical Model.pdf - Submitted Version

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Abstract

This paper is inspired from various boundary determination techniques which are used for segregating colours between background, skin and lips. Basic concept for this technique is based on colour segmentation with CIELAB colourspace utilized for justifiable reasons. Using LAB colour-space, lips colours were compiled into a colour-map and processed accordingly to our proposed algorithm of adaptive circular enclosure. Algorithm output was determined as a series of coordinates symbolizing boundary values surrounding colourmap. Separation of colours is based on these boundaries by creating a freeform polygon that defines if colour-value either belongs within colour-boundary polygon or not. This technique is famously known as the point in-polygon technique. Proposed technique evaluation uses XM2VTS database based on false positive and false-negative to compute segmentation error. Simulation shows proposed algorithm yields segmented error of 5.55% with accuracy of 94.45%.

Item Type: Conference or Workshop Item (Paper)
Additional Information: 1st author is with University of Nottingham, Faculty of Engineering; 2nd and 3rd authors are with Sunway University, Dept of Computer Sciences and Networked Systems; 4th author with Edith Cowan University
Uncontrolled Keywords: Boundary Points; Circular Expansion; Colour Space; Geometrical Distribution Model; Lip Segmentation; Point-In-Polygon
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
Divisions: Sunway University > School of Science and Technology > Dept. Computer Sciences & Networked System
Others > Non Sunway Academics
Depositing User: Ms. Molly Chuah
Date Deposited: 08 Jul 2013 09:10
Last Modified: 08 Jul 2013 09:10
URI: http://eprints.sunway.edu.my/id/eprint/157

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