Title :
A directional decomposition: theory, design, and implementation
Author :
Nguyen, Truong T. ; Oraintara, Soontorn
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Arlington, TX, USA
Abstract :
We propose a new directional decomposition of images. Unlike the conventional original directional filter banks (DFB) with eight directional subbands, our DFB has six directional highpass and two lowpass subbands. The newly constructed DFB is maximally decimated and perfect reconstruction. We also show how to implement the new DFB by cascading three two-channels filter banks and discuss filter design issue related to the structure.
Keywords :
channel bank filters; high-pass filters; low-pass filters; directional filter banks; directional subbands; highpass subbands; image directional decomposition; lowpass subbands; two-channel filter banks; Data mining; Filter bank; Fingerprint recognition; Finite impulse response filter; Frequency conversion; Frequency estimation; Image denoising; Image matching; Image reconstruction; Image texture analysis;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328738
