Title :
A new structure of parallel filter bank allowing perfect reconstruction
Author :
Komatsu, Kunitoshi ; Katto, Jiro ; Yasuda, Yasuhiko
Author_Institution :
Inst. of Ind. Sci., Tokyo Univ., Japan
Abstract :
New parallel filter banks allowing perfect reconstruction which are categorized in coding intermediate between subband coding and predictive coding are presented. M-channel filter banks allowing perfect reconstruction are represented mathematically, and filter banks categorized in the above coding are discovered. Three types of three-channel filter banks are designed. The coding gains of these filter banks are then maximized, i.e., the filter coefficients are optimized from the viewpoint of energy compaction property. Computer simulation shows that the designed filter bank performs well
Keywords :
digital filters; image coding; coding gains; computer simulation; energy compaction property; filter coefficients; image coding; parallel filter bank; perfect reconstruction; predictive coding; subband coding; three-channel filter banks; Channel bank filters; Compaction; Computer simulation; Equations; Filter bank; Image coding; Image reconstruction; Kernel; Predictive coding; Signal synthesis;
Conference_Titel :
TENCON '92. ''Technology Enabling Tomorrow : Computers, Communications and Automation towards the 21st Century.' 1992 IEEE Region 10 International Conference.
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-0849-2
DOI :
10.1109/TENCON.1992.272035
