文件名称:10.1.1.139.6915
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PERCEPTUAL OPTIMIZATION OF WAVELET IMAGE COMPRESSION
NASA’s extensive image compression requirements may be met in part by the use
of wavelet techniques.1 Wavelets form a large class of signal and image transforms,
generally characterized by decomposition into a set of self-similar signals that vary
in scale and (in 2D) orientation.2 The Discrete Wavelet Transform (DWT) is a
particular member of this family which operates on discrete sequences, and which
has proven to be an effective tool in image compression.
NASA’s extensive image compression requirements may be met in part by the use
of wavelet techniques.1 Wavelets form a large class of signal and image transforms,
generally characterized by decomposition into a set of self-similar signals that vary
in scale and (in 2D) orientation.2 The Discrete Wavelet Transform (DWT) is a
particular member of this family which operates on discrete sequences, and which
has proven to be an effective tool in image compression.
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