[1] viXra:1103.0007 [pdf] submitted on 3 Mar 2011
Authors: Vladimir F. Tamari, Masato Kobori
Comments:
13 pages.
The concept of simulating chosen information channels of a linear incoherent imaging system by
projecting reference signals is proposed and the system's ability to restore severely distorted but
stationary images is experimentally demonstrated. A particular instrument's object field is divided
into N discrete 'points' whose individual simulated outputs is measured at N particular sampling
points; the NxN output matrix F is the transfer matrix of the system, and being empirically derived,
it precisely accounts for all diffractions, aberrations, distortions, peculiarities of the chosen object
points and sensor size and distribution. As such F can become the basis for eliminating algorithmhardware
mismatch in various restoration schemes. Calibration allows treating the instrument as an
unknown 'black box', and imaging through a severely and arbitrarily distorting hardware is
demonstrated. Other uses of F are to add or subtract the outputs of separate instruments viewing the
same object on a pixel-by-pixel basis, and as a graphically or digitally presented measure of the
instrument's local transfer function, and hence of image quality.
Category: Digital Signal Processing