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- W2352947064 abstract "In view of the problems of complicated convolution process of wavelet transform,repeated calculations and a huge capacity of memory in SPIHT algorithm,a method of using a combination of wavelet tree classification and hybrid coding for image compression was presented.First,wavelet transform is applied to rich image for a full de-composition.Next,a wavelet-tree classifier can efficiently divide the high frequency subbands into low frequency tree and high frequency tree.Finally,the DPCM,the SPIHT and the MVQ are used to code in the lowest frequency subband,for low frequency tree and high frequency tree respectively.Simulation results show that this method can be better than SPIHT concerning the PSNR and coding/decoding time.The PSNR of Boat image increases by 0.8dB using this method at 0.125b/s." @default.
- W2352947064 created "2016-06-24" @default.
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- W2352947064 date "2006-01-01" @default.
- W2352947064 modified "2023-09-23" @default.
- W2352947064 title "A Method of Image Compression Using Wavelet Tree Classification and Hybrid Coding" @default.
- W2352947064 hasPublicationYear "2006" @default.
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