Title :
A study on optimal bit allocation strategy for video coding with 3D wavelet transform at low bit rate
Author :
Qi, Yincheng ; Li, Chunhua ; Zhang, Suxiang ; Wang, Yanjun
Author_Institution :
Dept. of Electron. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
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
Keywords :
image reconstruction; image sequences; quantisation (signal); video coding; wavelet transforms; 3D wavelet transform; bit rate; image sequences; minimized distortions; optimal bit allocation strategy; quantization matrix; quantization noise; reconstruction noise; transformed subband images; video coding; Bit rate; Filters; Humans; Image coding; Image reconstruction; Quantization; Transform coding; Video coding; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2000. IEEE APCCAS 2000. The 2000 IEEE Asia-Pacific Conference on
Conference_Location :
Tianjin
Print_ISBN :
0-7803-6253-5
DOI :
10.1109/APCCAS.2000.913614
