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| Content Provider | Springer Nature Link |
|---|---|
| Author | Morbee, Marleen Roca, Antoni Prades Nebot, Josep Pižurica, Aleksandra Philips, Wilfried |
| Copyright Year | 2007 |
| Abstract | In some video coding applications, it is desirable to reduce the complexity of the video encoder at the expense of a more complex decoder. Wyner–Ziv (WZ) video coding is a new paradigm that aims to achieve this. To allocate a proper number of bits to each frame, most WZ video coding algorithms use a feedback channel, which allows the decoder to request additional bits when needed. However, due to these multiple bit requests, the complexity and the latency of WZ video decoders increase massively. To overcome these problems, in this paper we propose a rate allocation (RA) algorithm for pixel-domain WZ video coders. This algorithm estimates at the encoder the number of bits needed for the decoding of every frame while still keeping the encoder complexity low. Experimental results show that, by using our RA algorithm, the number of bit requests over the feedback channel—and hence, the decoder complexity and the latency—are significantly reduced. Meanwhile, a very near-to-optimal rate-distortion performance is maintained. |
| Starting Page | 129 |
| Ending Page | 140 |
| Page Count | 12 |
| File Format | |
| ISSN | 18631703 |
| Journal | Signal, Image and Video Processing |
| Volume Number | 2 |
| Issue Number | 2 |
| e-ISSN | 18631711 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2007-12-07 |
| Publisher Place | London |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Distributed video coding Wyner–Ziv coding Feedback channel Rate allocation Multimedia Information Systems Computer Imaging, Vision, Pattern Recognition and Graphics Image Processing and Computer Vision Signal, Image and Speech Processing |
| Content Type | Text |
| Resource Type | Article |
| Subject | Signal Processing Electrical and Electronic Engineering |
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