Title :
Vector valued sigma delta modulators for color image applications
Author :
Kok, C.W. ; Chen, T.
Author_Institution :
ECE Dept., Wisconsin Univ., Madison, WI, USA
Abstract :
A vector valued ΣΔ modulator is proposed for multi-input signal applications, such as color imaging. Traditional ΣΔ modulators can be modeled with a vector quantizer in 1-D signal space. The proposed ΣΔ modulator extends this concept to M-D vector space. An optimal noise shaping filter for the oversampled vector-valued ΣΔ modulator is considered. Simulation results verified the improvement provided by the proposed modulator
Keywords :
filtering theory; image colour analysis; modulators; sigma-delta modulation; vector quantisation; color image applications; multi-input signal applications; multidimensional vector space; optimal noise shaping filter; simulation results; vector quantizer; vector valued sigma delta modulators; Color; Delay effects; Delta modulation; Delta-sigma modulation; Digital modulation; Filters; Image reconstruction; Mean square error methods; Signal analysis; Signal mapping;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.631963
