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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Eeckhaut, H. Devos, H. Schrauwen, B. Christiaens, M. Stroobandt, D. |
| Copyright Year | 2005 |
| Description | Author affiliation: ELIS-PARIS, Univ. Gent, Belgium (Eeckhaut, H.; Devos, H.; Schrauwen, B.; Christiaens, M.; Stroobandt, D.) |
| Abstract | A scalable video codec provides the ability to produce a smaller video stream with reduced frame rate, resolution or image quality starting from the original encoded video stream with almost no additional computation. This is important for portable devices that have different quality of service (QoS) requirements and power restrictions. Conventional video codecs do not possess this property; reduced quality is obtained through the arduous process of decoding the encoded video stream and recoding it at a lower quality. Producing such a smaller stream has therefore a very high computational cost. In this article, we present the results of our investigation into the hardware implementation of such a scalable video codec. In particular, we found that the implementation of the entropy codec is a significant bottleneck. We present an alternative, hardware friendly algorithm for entropy coding with superior data locality (both temporal and spatial), with a smaller memory footprint and superior compression while maintaining all required scalability properties. |
| Sponsorship | European Design and Autom. Assoc. EDA Consortium IEEE Comput. Soc. TTTC, IEEE Comput. Soc. DATC, ECSI, ACM SIGDA, RAS |
| Starting Page | 14 |
| Ending Page | 19 |
| File Size | 329686 |
| Page Count | 6 |
| File Format | |
| ISBN | 0769522882 |
| ISSN | 15301591 |
| DOI | 10.1109/DATE.2005.16 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-03-07 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Streaming media Video codecs Quality of service Hardware Image resolution Image quality Decoding Computational efficiency Entropy coding Scalability |
| Content Type | Text |
| Resource Type | Article |
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