Modified SPIHT algorithm for wavelet packet image coding
International Symposium on VIPromCom Video/Image Processing and Multimedia Communications - Trang 189-194
Tóm tắt
SPIHT is a very efficient image compression algorithm that is based on the idea of coding groups of wavelet coefficients as zerotrees. This method is well suited for the dyadic wavelet transform, where child-parent relations are easily established. In this paper we investigate how the SPIHT algorithm can be used for any arbitrary wavelet packet basis.
Từ khóa
#Wavelet packets #Image coding #Entropy #Quantization #Discrete transforms #Cost function #Wavelet transforms #Discrete wavelet transforms #Energy measurement #Transform codingTài liệu tham khảo
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