Title :
Directional subband coding of images
Author :
Li, Haibo ; He, Zhenya
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Jiang-Su, China
Abstract :
The authors present a novel subband coding method, directional subband coding of images. In order to match human visual sensitivity, an image is decomposed into a low-frequency component and many high-frequency directional components using a separable quadrature mirror filter and a directional filter. Effective coding methods are then used to encode the component images. The method is computationally simple and avoids potentially difficult design problems. Computer simulations show that the method performs well
Keywords :
encoding; filtering and prediction theory; picture processing; directional filter; directional subband coding; high-frequency directional components; human visual sensitivity; image coding; low-frequency component; separable quadrature mirror filter; Constraint optimization; Finite impulse response filter; Frequency; Hydrogen; Image analysis; Image coding; Image edge detection; Image reconstruction; Low pass filters; Nonlinear filters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266806