Linear-quadratic noise-smoothing filters for quantum-limited images
C.L. Chah, Aggelos K. Katsaggelos, Alan Varteres Sahakian · IEEE Transactions on Image Processing · 1995
We consider the use of nonlinear estimators for the noise smoothing of images obtained under quantum-limited imaging conditions. A Volterra expansion is investigated from which a set of linear-quadratic filters is derived using higher order statistics. The filters are applicable for single frame and multiple frames of a single scene imaged under low-light levels.