Covariance-Preconditioned Iterative Methods for Nonnegatively Constrained Astronomical Imaging - Bardsley, Johnathan M.; Nagy, James G. (SIAM journal on matrix analysis and applications, 2006)
Keywords: Algorithms; Applied mathematics; Cameras; Exact sciences and technology; Iterative methods; Mathematics; Noise; Numerical analysis; Numerical analysis. Scientific computation; Numerical linear algebra; Random variables; Sciences and techniques of general use; Sensors; Telescopes; weighted least squares; Iterative method; Random vector; Image restoration; linear models; Linear model; Statistical method; Linear system; Covariance; Least squares method; Imaging; 65F30; 65F20; Conditioning; Preconditioning; statistical methods