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 |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74412827/ |
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| _version_ | 1841537785126715392 |
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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-5421d9a870f64b679392de49cc961857 |
| institution | Kabale University |
| 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-5421d9a870f64b679392de49cc9618572025-01-14T08:15:11ZzhoEditorial 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/zh/article/74412827/Wyner-Ziv codingno feedbackrate controlcorrelation 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/zh/article/74412827/ |
| work_keys_str_mv | AT songbin nofeedbackratecontrolalgorithmforwynerzivvideocoding AT yangmingming nofeedbackratecontrolalgorithmforwynerzivvideocoding AT qinhao nofeedbackratecontrolalgorithmforwynerzivvideocoding AT hehong nofeedbackratecontrolalgorithmforwynerzivvideocoding |