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A Comprehensive Study and Performance Evaluation of hdr video coding

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019年第3期44卷 2427-2444页

作者： Mir, Junaid Talagala, Dumidu S. Fernando, Anil Arachchi, Hemantha K. Univ Engn & Technol Taxila Dept Elect Engn Taxila Pakistan Univ Surrey CVSSP Guildford Surrey England

With production side for the hdr video being standardized, the distribution phase is still in its infancy. Although a number of promising hdr video coding methods exist, the standardization efforts for hdr video distribution are hampered due to limited performance evaluations. This paper addresses this shortcoming by first reviewing the existing hdr video coding methods categorically. A comprehensive performance evaluation is then presented of five state-of-the-art hdr video coding methods, namely hdr-MPEG, hdr10 (PQ), HLG hdr-TV, AdaptRes and SHVC-based coding method. The evaluation was performed on a hdr video dataset considering two hdr display configurations with four objective quality measures including hdr-VDP-2.2 and hdr-VQM quality metrics. The results reveal novel observations regarding two-layer backward-compatible hdr video coding methods indicating that these methods can provide better or similar hdr quality as in single-layer backward-compatible hdr video coding method HLG hdr-TV. Furthermore, hdr10 (PQ), the single-layer method designed for only hdr content delivery, outperforms the other evaluated methods in this work, demonstrating that best hdr quality can be achieved only without the constraint of backward compatibility. Finally, a discrepancy revealed in the performance, in terms of the hdr-VQM metric when compared to the other quality measures, is presented and its implications are discussed.

关键词： Backward compatibility hdr video coding methods hdr video compression hdr video distribution Layered coding

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