Title :
Bounds on restoration quality using a priori information
Author :
Trussell, H. Joel ; Vora, Poorvi L.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A theoretical bound on the improvement possible due to knowledge of signal points, for the case of a Gaussian signal in Gaussian noise, has been calculated. Wiener and projections-onto-convex-sets restorations have been computed both with and without knowledge of the known points. The estimation errors are compared for different noise levels and blurs, and different numbers of known points
Keywords :
signal processing; Gaussian noise; Gaussian signal; Wiener restorations; a priori information; blurs; estimation errors; projections-onto-convex-sets restorations; restoration quality; signal points; signal restoration; Covariance matrix; Eigenvalues and eigenfunctions; Estimation error; Fuzzy sets; Gaussian noise; Mean square error methods; Noise level; Parameter estimation; Signal restoration; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.196959
