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An operational rate-distortion optimal single-pass SNR scalable video coder

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2 Author(s)
Kondi, L.P. ; Dept. of Electr. Eng., State Univ. of New York, Buffalo, NY, USA ; Katsaggelos, A.K.

We introduce a new methodology for signal-to-noise ratio (SNR) video scalability based on the partitioning of the DCT coefficients. The DCT coefficients of the displaced frame difference (DFD) for inter-blocks or the intensity for intra-blocks are partitioned into a base layer and one or more enhancement layers, thus, producing an embedded bitstream. Subsets of this bitstream can be transmitted with increasing video quality as measured by the SNR. Given a bit budget for the base and enhancement layers the partitioning of the DCT coefficients is done in a way that is optimal in the operational rate-distortion sense. The optimization is performed using Lagrangian relaxation and dynamic programming (DP). Experimental results are presented and conclusions are drawn

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Image Processing, IEEE Transactions on  (Volume:10 ,  Issue: 11 )