Title :
A multi-rate filter bank pre-processor for image compression
Author :
Bamberger, Robert H. ; Smith, Mark J T
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A multirate-filter-bank is introduced which is used as a preprocessor/postprocessor pair to improve the quality of general image coding methods such as linear predictive coding, vector-quantization, transform coding, and subband coding. Computer simulations demonstrating the versatility of this technique, are presented. In most cases tested, using the multirate filter banks provided better subjective and objective performance in coding
Keywords :
data compression; encoding; filtering and prediction theory; picture processing; image coding; image compression; linear predictive coding; multirate-filter-bank; picture processing; preprocessor/postprocessor pair; subband coding; transform coding; vector-quantization; Bit rate; Ear; Electric breakdown; Filter bank; Frequency; Image coding; Image reconstruction; Linear predictive coding; Predictive coding; Vector quantization;
Conference_Titel :
Southeastcon '89. Proceedings. Energy and Information Technologies in the Southeast., IEEE
Conference_Location :
Columbia, SC
DOI :
10.1109/SECON.1989.132526
