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A study on optimal bit allocation strategy for video coding with 3D wavelet transform at low bit rate

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4 Author(s)
Yincheng Qi ; Dept. of Electron. Eng., North China Electr. Power Univ., Baoding, China ; Chunhua Li ; Suxiang Zhang ; Yanjun Wang

Wavelet transform has proven to be a powerful technique for image coding. A 3D wavelet transform video coding algorithm for image sequences at low bit rate is researched in this paper. The quantization noise and the reconstruction noise of the transformed subband images are analyzed and the optimal bit allocation strategy with minimized distortions at a given bit rate is proposed. The quantization matrix is given. Simulation results proved its effectiveness and reasonableness

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Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on

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