Title :
On the rate-distortion efficiency of subband coding
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
fDate :
3/1/1992 12:00:00 AM
Abstract :
It is shown that for the realizable subband coding of a wide sense stationary Gaussian source, with the implied separate encoding of the subband signals, the encoding performance is generally inferior to the rate-distortion function of the source. It is established that, for small encoding distortion, except for special cases, the subband coding is generally suboptimum.<>
Keywords :
encoding; encoding distortion; encoding performance; rate-distortion efficiency; source coding; subband coding; suboptimum coding; wide sense stationary Gaussian source; Distortion; Encoding; Filter bank; Frequency; Mirrors; Quantization; Rate-distortion; Signal resolution; Transform coding; Wavelet transforms;
Journal_Title :
Information Theory, IEEE Transactions on
