Title :
Unequal Length First-Order Linear-Phase Filter Banks for Efficient Image Coding
Author :
Tanaka, Yuichi ; Ikehara, Masaaki ; Nguyen, Truong Q.
Author_Institution :
Keio Univ., Yokohama
fDate :
Sept. 16 2007-Oct. 19 2007
Abstract :
In this paper, we present the structure and design method for a first-order linear-phase filter bank (FOLPFB) which has unequal filter lengths in its synthesis bank (UFLPFB). A FOLPFB is a generalized version of biorthogonal LPFBs regarding their synthesis filter lengths. Ringing artifact is the main disadvantage of image coding based on FOLPFBs. UFLPFBs can reduce the ringing artifacts as well as approximate smooth regions well.
Keywords :
filtering theory; image coding; first-order linear-phase filter bank; image coding; Attenuation; Channel bank filters; Costs; Design methodology; Electronic mail; Filter bank; Image analysis; Image coding; Linear matrix inequalities; Nonlinear distortion; First-order linear-phase filter banks; biorthogonal filter banks; image coding; unequal length filter banks;
Conference_Titel :
Image Processing, 2007. ICIP 2007. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-1437-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2007.4379982
