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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sheng, Tao Zhu, Xinglei Hua, Guogang Guo, Hongxing Zhou, Jingli Chen, Chang Wen |
| Copyright Year | 2010 |
| Abstract | In most existing Wyner–Ziv video coding schemes, a feedback channel (FC) is expected at the decoder in order to allocate a proper bit rate for each Wyner–Ziv frame. However, FC not only results in additional latency but also increases decoding complexity due to the several feedback-decoding iterations. Moreover, FC may be unavailable in many practical video applications. In this paper, we propose a novel feedback-free rate-allocation scheme for transform domain Wyner–Ziv video coding (TD-WZVC), which predicts the rate for each Wyner–Ziv frame at the encoder without significantly increasing the complexity of the encoder. First, a correlation estimation model is presented to characterize the relationship between the source frame and the reference frame estimated at the encoder in TD-WZVC. Then, an efficient FC-free rate-allocation algorithm is proposed and a linear model is built to avoid both overestimation and underestimation of the real rate and obtain an optimal rate-distortion performance. Experimental results show that the proposed scheme is able to achieve a good encoder rate allocation while still maintaining consistent coding efficiency. |
| Starting Page | 127 |
| Ending Page | 137 |
| Page Count | 11 |
| File Format | |
| ISSN | 09424962 |
| Journal | Multimedia Systems |
| Volume Number | 16 |
| Issue Number | 2 |
| e-ISSN | 14321882 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2010-01-05 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Rate allocation Transform domain Wyner–Ziv video coding Feedback channel Correlation estimation model Computer Graphics Data Encryption Data Storage Representation Operating Systems Computer Communication Networks Multimedia Information Systems |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Networks and Communications Information Systems Media Technology Hardware and Architecture Software |
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