论文信息 - A modified hybrid DCT-SVD image-coding system

A modified hybrid DCT-SVD image-coding system

This paper proposes a hybrid image-coding system that combines the DCT and the SVD. A criterion based on the standard deviation of 8/spl times/8 blocks of an image is used to choose between DCT and SVD. The DCT is used to transform the high correlated blocks of the image, while the SVD is used to transform the low correlated blocks. The AMVQ is used to encode the eigenvectors of the blocks encoded using the SVD and the uniform quantization is used to encode the DCT coefficients. The simulation results show good image quality at low bit rates.

Y. Wongsawat | H. Ochoa | K.R. Rao

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