Lagrange multiplier selection based on SATD for H.265/HEVC
In order to improve the coding performance of intra rough mode decision,a SATD-based Lagrange multiplier selection algorithm was proposed for H.265/HEVC.The characteristic of Hadamard transform was first analyzed,and following the new Lagrange multiplier calculation approach based on the distortion...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017114/ |
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| _version_ | 1850122189112606720 |
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| author | Wei LI Fan ZHAO Er-hu ZHANG Peng REN |
| author_facet | Wei LI Fan ZHAO Er-hu ZHANG Peng REN |
| author_sort | Wei LI |
| collection | DOAJ |
| description | In order to improve the coding performance of intra rough mode decision,a SATD-based Lagrange multiplier selection algorithm was proposed for H.265/HEVC.The characteristic of Hadamard transform was first analyzed,and following the new Lagrange multiplier calculation approach based on the distortion measurement of SATD was constructed according to the rate-distortion theory.Then combing the principle of discrete cosine transform,the related parameters were obtained by the formula derivation.Experimental results show that the proposed method supports more accurately intra prediction mode decision,and the reconstruction video quality is improved in average while keeping the same bit-rate. |
| format | Article |
| id | doaj-art-7d71fef79256410cb302d2cff11eb76d |
| institution | OA Journals |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-7d71fef79256410cb302d2cff11eb76d2025-08-20T02:34:53ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-06-0138687459709625Lagrange multiplier selection based on SATD for H.265/HEVCWei LIFan ZHAOEr-hu ZHANGPeng RENIn order to improve the coding performance of intra rough mode decision,a SATD-based Lagrange multiplier selection algorithm was proposed for H.265/HEVC.The characteristic of Hadamard transform was first analyzed,and following the new Lagrange multiplier calculation approach based on the distortion measurement of SATD was constructed according to the rate-distortion theory.Then combing the principle of discrete cosine transform,the related parameters were obtained by the formula derivation.Experimental results show that the proposed method supports more accurately intra prediction mode decision,and the reconstruction video quality is improved in average while keeping the same bit-rate.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017114/intra prediction mode decisionLagrange multiplierrate-distortion optimizationH.265/HEVC |
| spellingShingle | Wei LI Fan ZHAO Er-hu ZHANG Peng REN Lagrange multiplier selection based on SATD for H.265/HEVC Tongxin xuebao intra prediction mode decision Lagrange multiplier rate-distortion optimization H.265/HEVC |
| title | Lagrange multiplier selection based on SATD for H.265/HEVC |
| title_full | Lagrange multiplier selection based on SATD for H.265/HEVC |
| title_fullStr | Lagrange multiplier selection based on SATD for H.265/HEVC |
| title_full_unstemmed | Lagrange multiplier selection based on SATD for H.265/HEVC |
| title_short | Lagrange multiplier selection based on SATD for H.265/HEVC |
| title_sort | lagrange multiplier selection based on satd for h 265 hevc |
| topic | intra prediction mode decision Lagrange multiplier rate-distortion optimization H.265/HEVC |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017114/ |
| work_keys_str_mv | AT weili lagrangemultiplierselectionbasedonsatdforh265hevc AT fanzhao lagrangemultiplierselectionbasedonsatdforh265hevc AT erhuzhang lagrangemultiplierselectionbasedonsatdforh265hevc AT pengren lagrangemultiplierselectionbasedonsatdforh265hevc |