DocumentCode
1688364
Title
Spectral extrapolation in sub-band coding
Author
Cafforio, Ciro ; Sciascio, Eugenio Di ; Guaragnella, Cataldo
Author_Institution
Dipt. di Elettrotecnica ed Elettronica, Bari Univ., Italy
fYear
1996
Firstpage
13
Lastpage
16
Abstract
We examine how feasible it is to extrapolate high-pass terms from the low-pass sub-image obtained by sub-band decomposition. Only very simple techniques like morphological filtering and contours extraction have been considered at this first stage, attempting to synthesize from the low-pass sub-image the attenuated transitions. The results point out that there is room for further investigation and improvements
Keywords
extrapolation; feature extraction; filtering theory; image coding; mathematical morphology; spectral analysis; transform coding; algorithm; attenuated transitions; contours extraction; high-pass terms; image synthesis; low-pass subimage; morphological filtering; spectral extrapolation; subband coding; subband decomposition; transform coding; Band pass filters; Bandwidth; Decoding; Digital images; Extrapolation; Filtering; Frequency; Image coding; Image storage; Low pass filters;
fLanguage
English
Publisher
ieee
Conference_Titel
Digital Signal Processing Workshop Proceedings, 1996., IEEE
Conference_Location
Loen
Print_ISBN
0-7803-3629-1
Type
conf
DOI
10.1109/DSPWS.1996.555448
Filename
555448
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