Effect of Color Space on High Dynamic Range Video Compression Performance.

Zerman, E., Hulusic, V., Valenzise, G., Mantiuk, R.L. and Dufaux, F., 2017. Effect of Color Space on High Dynamic Range Video Compression Performance. In: Ninth International Conference on Quality of Multimedia Experience (QoMEX), 2017, 31 May-2 June 2017, Erfurt, Germany.

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DOI: 10.1109/QoMEX.2017.7965632


High dynamic range (HDR) technology allows for capturing and delivering a greater range of luminance levels compared to traditional video using standard dynamic range (SDR). At the same time, it has brought multiple challenges in content distribution, one of them being video compression. While there has been a significant amount of work conducted on this topic, there are some aspects that could still benefit this area. One such aspect is the choice of color space used for coding. In this paper, we evaluate through a subjective study how the performance of HDR video compression is affected by three color spaces: the commonly used Y'CbCr, and the recently introduced ITP (ICtCp) and Ypu'v'. Five video sequences are compressed at four bit rates, selected in a preliminary study, and their quality is assessed using pairwise comparisons. The results of pairwise comparisons are further analyzed and scaled to obtain quality scores. We found no evidence of ITP improving compression performance over Y'CbCr. We also found that Ypu'v' results in a moderately lower performance for some sequences.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Image color analysis; Bit rate; Color, Video compression; Video sequences; Dynamic range; Image coding
Group:Faculty of Science & Technology
ID Code:30387
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:19 Feb 2018 11:43
Last Modified:19 Feb 2018 11:43


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