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
Spectral Extrapolation in Sub-Band Coding / Cafforio, Ciro; DI SCIASCIO, Eugenio; Guaragnella, Cataldo. - (1996), pp. 13-16. (Intervento presentato al convegno IEEE Digital Signal Processing Workshop, DSP 1996 tenutosi a Loen, Norway nel September 1-4, 1996) [10.1109/DSPWS.1996.555448].
Spectral Extrapolation in Sub-Band Coding
DI SCIASCIO, Eugenio;GUARAGNELLA, Cataldo
1996-01-01
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 improvementsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
