3-D wavelet coding of video with arbitrary regions of support
IEEE Transactions on Circuits and Systems for Video Technology, 2001•ieeexplore.ieee.org
We examine 3-D wavelet coding of video with arbitrary regions of support (AROS). A
critically sampled wavelet transform is applied to the AROS and a modified 3-D set
partitioning in hierarchical trees (SPIHT) algorithm is used to quantize and code the wavelet
coefficients in the AROS only. Experiments show that, for typical MPEG-4 pre-segmented
sequences, our proposed method can achieve a gain of up to 5.6 dB in average PSNR at
the same rate over 3-D SPIHT coding of regular volumes that embed the AROS of the given …
critically sampled wavelet transform is applied to the AROS and a modified 3-D set
partitioning in hierarchical trees (SPIHT) algorithm is used to quantize and code the wavelet
coefficients in the AROS only. Experiments show that, for typical MPEG-4 pre-segmented
sequences, our proposed method can achieve a gain of up to 5.6 dB in average PSNR at
the same rate over 3-D SPIHT coding of regular volumes that embed the AROS of the given …
We examine 3-D wavelet coding of video with arbitrary regions of support (AROS). A critically sampled wavelet transform is applied to the AROS and a modified 3-D set partitioning in hierarchical trees (SPIHT) algorithm is used to quantize and code the wavelet coefficients in the AROS only. Experiments show that, for typical MPEG-4 pre-segmented sequences, our proposed method can achieve a gain of up to 5.6 dB in average PSNR at the same rate over 3-D SPIHT coding of regular volumes that embed the AROS of the given video sequences.
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