H.265/HEVC frame-level bitrate allocation algorithm considering video content
In order to guarantee the consistency between the coded bits and target bits,a frame-level bitrate allocation al-gorithm considering the content feature was proposed for H.265/HEVC codec.The main factors to affect the output bi-trate were first discussed by the analysis of rate-distortion theory.Acc...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2015-09-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015239/ |
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| Summary: | In order to guarantee the consistency between the coded bits and target bits,a frame-level bitrate allocation al-gorithm considering the content feature was proposed for H.265/HEVC codec.The main factors to affect the output bi-trate were first discussed by the analysis of rate-distortion theory.According to the video coding principle,the related pa-rameter was then predicted to reflect the content complexity.Finally,an efficient frame-level bitrate allocation algorithm was constructed.Experimental results show that the target bits and coded bits keep a better consistency,and the recon-struction video quality is improved by 0.103 dB in average. |
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| ISSN: | 1000-436X |