Title :
Subband processing of finite length signals without border distortions
Author :
De Queiroz, Ricardo L.
Author_Institution :
Dept. de Engenharia Eletrica, Brasilia Univ., Brazil
Abstract :
New equations are derived for the perfect reconstruction of the boundary regions of a subband processed image. These equations are valid for filter banks with an arbitrary number of filters, having arbitrary nonlinear phase, and allowing any border extension method in the analysis section. The filter bank is maximally decimated in a wide sense, i.e., the sum of samples among the subbands is equal to the sum of the image samples, without having to store extended subband signals
Keywords :
filtering and prediction theory; image coding; image reconstruction; border extension method; boundary regions; filter banks; finite length signals; nonlinear phase; perfect reconstruction; subband processed image; Convolution; Filter bank; Filtering; Finite impulse response filter; Nonlinear distortion; Nonlinear equations; Reflection; Signal analysis; Signal processing; Signal synthesis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226323
