| Constant Quality Rate Allocation for FGS Coding Using Composite R-D Analysis |
| Citation: |
* Cheng, H.; Zhang, X.M.; Shi, Y.Q.; Vetro, A.; Sun, H., "Constant Quality Rate Allocation for FGS Coding Using Composite R-D Analysis", IEEE Transactions on Multimedia, ISSN: 1520-9210, Vol. 8, Issue 2, pp. 405-407, April 2006 (IEEE Xplore) |
| Date: | April 2006 |
| MERL Contacts: | Anthony Vetro,
Huifang Sun |
In this correspondence, we propose a constant quality rate allocation algorithm for Fine Granularity Scalability (FGS) coded videos. The rate allocation problem is formulated as a contrained minimization of quality fluctuation. The rate allocation problem is formulated as a constrained minimization of quality fluctuation. The minimization is solved using a composite rate distortion (R-D) analysis. For a set of video frames, a composite R-D curve is first computed and then used for computing the optimal rate allocation. This algorithm is efficient because it is neither iterative nor recursive. After the composite R-D curve is computed, it can be used for optimal rate allocation of any rate budget. Moreover, the composite R-D curve can be updated efficiently over sliding windows. Experimental results have shown both the effectiveness and the efficiency of the proposed algorithm. |
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