Title :
Subband coding of images with circular convolution
Author :
Iwahashi, Masahiro ; Kiya, Hitoshi ; Nishikawa, Kiyoshi
Author_Institution :
Nippon Steel Corp., Kanagawa, Japan
Abstract :
A novel filtering technique for subband coding (SBC) of images is introduced. The method avoids data increase, reduces reconstructed image data distortion, and activates any type of linear phase finite impulse response (FIR) filter. The procedure involves (1) special methods that generate periodic data from original nonperiodic data; (2) identifying the relation between periodic data types and filter types; and (3) the selection of an appropriate method of rate conversion. Simulation results show the benefit of the proposed method
Keywords :
filtering and prediction theory; image coding; FIR filter; circular convolution; distortion reduction; filtering technique; linear phase finite impulse response; rate conversion; reconstructed image data; subband coding; Cities and towns; Convolution; Filter bank; Filtering; Finite impulse response filter; Image coding; Image converters; Nonlinear filters; Research and development; Signal synthesis;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230252
