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  4. Chroma subsampling for HDR video with improved subjective quality
 
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2013
Conference Paper
Title

Chroma subsampling for HDR video with improved subjective quality

Abstract
Many proposed high dynamic range (HDR) video coding schemes employ a float to integer transform with a subsequent standard low dynamic range (LDR) video codec. Standard LDR video codecs often work with subsampled chrominance components, usually 4:2:0. In this work we subjectively evaluate float to integer transforms and chroma subsampling for HDR video coding. An adaptive logLuv transform with 12 bit luma component and 8 bit chroma components proves adequate for HDR video coding. A novel chroma subsampling technique is proposed to avoid color bleeding artifacts while preserving the saturation. Subjective tests show improved performance over other known subsampling techniques.
Author(s)
Thoma, Herbert  
Frutos-Lopez, Manuel de
Auer, Johannes
Mainwork
Picture Coding Symposium, PCS 2013. Proceedings  
Conference
Picture Coding Symposium (PCS) 2013  
DOI
10.1109/PCS.2013.6737754
Language
English
Fraunhofer-Institut für Integrierte Schaltungen IIS  
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