APSIPA Transactions on Signal and Information Processing > Vol 6 > Issue 1

Extended cross-component prediction in HEVC

Mischa Siekmann, Fraunhofer Institute for Telecommunications—Heinrich Hertz Institute, Germany, mischa.siekmann@hhi.fraunhofer.de , Ali Khairat, Fraunhofer Institute for Telecommunications—Heinrich Hertz Institute, Germany, Tung Nguyen, Fraunhofer Institute for Telecommunications—Heinrich Hertz Institute, Germany, Detlev Marpe, Fraunhofer Institute for Telecommunications—Heinrich Hertz Institute, Germany, Thomas Wiegand, Fraunhofer Institute for Telecommunications—Heinrich Hertz Institute, Germany
 
Suggested Citation
Mischa Siekmann, Ali Khairat, Tung Nguyen, Detlev Marpe and Thomas Wiegand (2017), "Extended cross-component prediction in HEVC", APSIPA Transactions on Signal and Information Processing: Vol. 6: No. 1, e3. http://dx.doi.org/10.1017/ATSIP.2017.3

Publication Date: 06 Apr 2017
© 2017 Mischa Siekmann, Ali Khairat, Tung Nguyen, Detlev Marpe and Thomas Wiegand
 
Subjects
 
Keywords
Video compressionColor decorrelationCross-component prediction (CCP)High-efficiency video coding (HEVC)
 

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In this article:
I. INTRODUCTION 
II. CROSS-COMPONENT DEPENDENCIES IN VIDEO COMPRESSION 
III. CCP IN HEVC 
IV. CCP EXTENSION 
V. PERFORMANCE EVALUATION 
VI. CONCLUSION 

Abstract

With Version 2 of the high-efficiency video coding standard, a new compression efficiency tool targeting redundancies among color components is specified for all 4:4:4 profiles, and referred to as cross-component prediction (CCP). This paper describes and analyses two additional extensions to the specified CCP variant. In the first extension, an additional predictor is introduced. Particularly, beside the luma component, also the first chroma component can serve as a reference for prediction of the second chroma component. The second extension proposes a method for predicting the CCP model parameter from the statistics of already reconstructed neighboring blocks. A performance analysis of coding RGB content in different color representations is given in comparison with CCP and both extensions. Experimental results show that the proposed extensions can improve the compression efficiency effectively compared with CCP, when applied in the YCbCr domain.

DOI:10.1017/ATSIP.2017.3