A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video
The evolution of display technologies makes high dynamic range/wide color gamut (HDR/WCG) media of great interest in various applications including cinema, TV, blue-ray titles, and others. However, the HDR/WCG media format for consumer electronics requires the sampling rate conversion of chroma sign...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/8/10/1975 |
| _version_ | 1818910291652509696 |
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| author | Tae-Young Kim Yong-Goo Kim |
| author_facet | Tae-Young Kim Yong-Goo Kim |
| author_sort | Tae-Young Kim |
| collection | DOAJ |
| description | The evolution of display technologies makes high dynamic range/wide color gamut (HDR/WCG) media of great interest in various applications including cinema, TV, blue-ray titles, and others. However, the HDR/WCG media format for consumer electronics requires the sampling rate conversion of chroma signals, resulting in a quality problem on the luminance perception of media, even without compression. In order to reduce such luminance perception problems, this paper proposes a fast and reliable luma control scheme which takes advantage of the bounds on the best luma value derived from the solution based on truncated Taylor series. Simulations performed for an extensive comparison study demonstrate that the proposed algorithm significantly outperforms the previous representative fast luma control schemes, resulting in almost the same quality of the iterative optimal solution with a fixed amount of computations per processing unit. |
| first_indexed | 2024-12-19T22:40:28Z |
| format | Article |
| id | doaj.art-0212424213994ba29c17f0db3b21a67f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-19T22:40:28Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0212424213994ba29c17f0db3b21a67f2022-12-21T20:03:05ZengMDPI AGApplied Sciences2076-34172018-10-01810197510.3390/app8101975app8101975A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG VideoTae-Young Kim0Yong-Goo Kim1Department of Newmedia, Seoul Media Institute of Technology, Seoul 07590, KoreaDepartment of Newmedia, Seoul Media Institute of Technology, Seoul 07590, KoreaThe evolution of display technologies makes high dynamic range/wide color gamut (HDR/WCG) media of great interest in various applications including cinema, TV, blue-ray titles, and others. However, the HDR/WCG media format for consumer electronics requires the sampling rate conversion of chroma signals, resulting in a quality problem on the luminance perception of media, even without compression. In order to reduce such luminance perception problems, this paper proposes a fast and reliable luma control scheme which takes advantage of the bounds on the best luma value derived from the solution based on truncated Taylor series. Simulations performed for an extensive comparison study demonstrate that the proposed algorithm significantly outperforms the previous representative fast luma control schemes, resulting in almost the same quality of the iterative optimal solution with a fixed amount of computations per processing unit.http://www.mdpi.com/2076-3417/8/10/1975HDR (high dynamic range)WCG (wide color gamut)fast luma controlPQ (perceptual quantizer)luminance perception |
| spellingShingle | Tae-Young Kim Yong-Goo Kim A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video Applied Sciences HDR (high dynamic range) WCG (wide color gamut) fast luma control PQ (perceptual quantizer) luminance perception |
| title | A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video |
| title_full | A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video |
| title_fullStr | A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video |
| title_full_unstemmed | A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video |
| title_short | A Fast and Reliable Luma Control Scheme for High-Quality HDR/WCG Video |
| title_sort | fast and reliable luma control scheme for high quality hdr wcg video |
| topic | HDR (high dynamic range) WCG (wide color gamut) fast luma control PQ (perceptual quantizer) luminance perception |
| url | http://www.mdpi.com/2076-3417/8/10/1975 |
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