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Uniform color space based high dynamic range video compression
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Mukherjee, Ratnajit, Debattista, Kurt, Bashford-Rogers, Thomas, Bessa, Maximino and Chalmers, Alan (2018) Uniform color space based high dynamic range video compression. IEEE Transactions on Circuits and Systems for Video Technology . doi:10.1109/TCSVT.2018.2861560 (In Press)
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Official URL: https://doi.org/10.1109/TCSVT.2018.2861560
Abstract
Recently, there has been significant progress in the research and development of High Dynamic Range (HDR) video technology and state-of-the-art video pipelines are able to offer a higher bit depth support to capture, store, encode and display HDR video content. In this paper, we introduce a novel HDR video compression algorithm which uses a perceptually uniform color opponent space, a novel perceptual transfer function to encode the dynamic range of the scene and a novel error minimization scheme for accurate chroma reproduction. The proposed algorithm was objectively and subjectively evaluated against four state-of-the-art algorithms. The objective evaluation was conducted across a set of 39 HDR video sequences, using the latest x265 10-bit video codec along with several perceptual and structural quality assessment metrics at 11 different quality levels. Furthermore, a rating-based subjective evaluation (n=40) was conducted with six sequences at two different output bitrates. Results suggest that the proposed algorithm exhibits the lowest coding error amongst the five algorithms evaluated. Additionally, ratedistortion characteristics suggest that the proposed algo- rithm outperforms the existing state-of-the-art at bitrates ≥ 0 . 4 bits/pixel.
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TR Photography |
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| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
| Library of Congress Subject Headings (LCSH): | High dynamic range imaging, Video compression | ||||||||||||
| Journal or Publication Title: | IEEE Transactions on Circuits and Systems for Video Technology | ||||||||||||
| Publisher: | IEEE | ||||||||||||
| ISSN: | 1051-8215 | ||||||||||||
| Official Date: | 13 July 2018 | ||||||||||||
| Dates: |
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| Date of first compliant deposit: | 7 August 2018 | ||||||||||||
| DOI: | 10.1109/TCSVT.2018.2861560 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | In Press | ||||||||||||
| Publisher Statement: | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | ||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
| RIOXX Funder/Project Grant: |
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