DocumentCode
2134478
Title
Polyphase adaptive filter banks for subband decomposition
Author
Gerek, Ömer N. ; Cetin, A. Enis
Author_Institution
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Volume
5
fYear
1998
fDate
31 May-3 Jun 1998
Firstpage
480
Abstract
Subband decomposition is widely used in signal processing applications including image and speech compression. In most practical cases, the goal is to obtain subband signals that are suitable for data compression. In this paper, we present perfect reconstruction (PR) polyphase filter bank structures in which the filters adapt to the changing input conditions. This leads to higher compression results for images containing sharp edges, text, and subtitles
Keywords
adaptive filters; data compression; image coding; speech coding; changing input conditions; data compression; image compression; perfect reconstruction filter; polyphase adaptive filter banks; sharp edges; signal processing applications; speech compression; subband decomposition; subtitles; text; Adaptive filters; Adaptive signal processing; Decoding; Filter bank; Finite impulse response filter; Image coding; Matrix decomposition; Nonlinear filters; Speech processing; Statistics;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location
Monterey, CA
Print_ISBN
0-7803-4455-3
Type
conf
DOI
10.1109/ISCAS.1998.694537
Filename
694537
Link To Document