No-feedback rate control algorithm for Wyner-Ziv video coding
To avoid using feedback channel,an encoder rate control algorithm for Wyner-Ziv video coding was proposed.Firstly,using the target frame-rate and the target bit-rate,It could determine the bit allocation for each group-of-picture（GOP）.According to the correlation between adjacent frames,the bit budg...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/thesisDetails?columnId=74412827&Fpath=home&index=0 |
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| _version_ | 1850213187198124032 |
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| author | SONG Bin YANG Ming-ming QIN Hao HE Hong |
| author_facet | SONG Bin YANG Ming-ming QIN Hao HE Hong |
| author_sort | SONG Bin |
| collection | DOAJ |
| description | To avoid using feedback channel,an encoder rate control algorithm for Wyner-Ziv video coding was proposed.Firstly,using the target frame-rate and the target bit-rate,It could determine the bit allocation for each group-of-picture（GOP）.According to the correlation between adjacent frames,the bit budget for a GOP were further allocated to key frame and Wyner-Ziv frames within the GOP by dynamically choosing quantization parameter and quantization matrices.Then,with refinement of correlation-noise model（CNM） parameter,different LDPC（low-density parity-check） check matrices might be chosen for each bitplane to control the encoding bitrate of Wyner-Ziv frame.Experimental results show that the difference between expected target bitrate and actual encoded bitrate is less than 0.57% using the proposed method,and compared with existing algorithm,average PSNR（peak signal-to-noise ratio） of decoded video quality can be increased by 1 dB.In addition,our algorithm slightly increases encoder complexity,and can be used in practice. |
| format | Article |
| id | doaj-art-0356e17848c34468b80d4f8bd6bf5a7b |
| institution | OA Journals |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-0356e17848c34468b80d4f8bd6bf5a7b2025-08-20T02:09:11ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-01-01321774412827No-feedback rate control algorithm for Wyner-Ziv video codingSONG BinYANG Ming-mingQIN HaoHE HongTo avoid using feedback channel,an encoder rate control algorithm for Wyner-Ziv video coding was proposed.Firstly,using the target frame-rate and the target bit-rate,It could determine the bit allocation for each group-of-picture（GOP）.According to the correlation between adjacent frames,the bit budget for a GOP were further allocated to key frame and Wyner-Ziv frames within the GOP by dynamically choosing quantization parameter and quantization matrices.Then,with refinement of correlation-noise model（CNM） parameter,different LDPC（low-density parity-check） check matrices might be chosen for each bitplane to control the encoding bitrate of Wyner-Ziv frame.Experimental results show that the difference between expected target bitrate and actual encoded bitrate is less than 0.57% using the proposed method,and compared with existing algorithm,average PSNR（peak signal-to-noise ratio） of decoded video quality can be increased by 1 dB.In addition,our algorithm slightly increases encoder complexity,and can be used in practice.http://www.joconline.com.cn/thesisDetails?columnId=74412827&Fpath=home&index=0Wyner-Ziv coding;no feedback;rate control;correlation noise model |
| spellingShingle | SONG Bin YANG Ming-ming QIN Hao HE Hong No-feedback rate control algorithm for Wyner-Ziv video coding Tongxin xuebao Wyner-Ziv coding;no feedback;rate control;correlation noise model |
| title | No-feedback rate control algorithm for Wyner-Ziv video coding |
| title_full | No-feedback rate control algorithm for Wyner-Ziv video coding |
| title_fullStr | No-feedback rate control algorithm for Wyner-Ziv video coding |
| title_full_unstemmed | No-feedback rate control algorithm for Wyner-Ziv video coding |
| title_short | No-feedback rate control algorithm for Wyner-Ziv video coding |
| title_sort | no feedback rate control algorithm for wyner ziv video coding |
| topic | Wyner-Ziv coding;no feedback;rate control;correlation noise model |
| url | http://www.joconline.com.cn/thesisDetails?columnId=74412827&Fpath=home&index=0 |
| work_keys_str_mv | AT songbin nofeedbackratecontrolalgorithmforwynerzivvideocoding AT yangmingming nofeedbackratecontrolalgorithmforwynerzivvideocoding AT qinhao nofeedbackratecontrolalgorithmforwynerzivvideocoding AT hehong nofeedbackratecontrolalgorithmforwynerzivvideocoding |