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http://dx.doi.org/10.5392/JKCA.2015.15.02.001

Enhanced Coding Method by Remapping of Integral Images  

Kim, Su-Bin (충북대학교 전기전자컴퓨터학부 정보통신공학전공)
Kang, Hyun-Soo (충북대학교 전기전자컴퓨터학부 정보통신공학전공)
Publication Information
The Journal of the Korea Contents Association / v.15, no.2, 2015 , pp. 1-10 More about this Journal
Abstract
In this paper, we propose an integral image compression method to improve the coding efficiency. As the characteristics of integral images are various according to the distance between a camera and objects, complexity of the objects and background, etc, the coding efficiency can be improved by applying a coding method adaptive to the characteristics. In addition, as the integral images are compressed by the unit of elemental images, the coding efficiency can be improved. by employing a coding method optimized to the coding direction of elemental images. Therefore, the proposed method remaps an integral image with six kinds of mapping rules, and then the conventional 3D-DCT based compression method is applied to the remapped images. Finally, we perform the rate-distortion optimization to choose the best of the mapping rules. Experimental results show that the proposed method yields high gains in image quality and bit-rate.
Keywords
Integral Image; 3D-DCT; Image Coding; RDO;
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Times Cited By KSCI : 1  (Citation Analysis)
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