Image analysis – Image transformation or preprocessing – Changing the image coordinates
Patent
1995-06-09
1998-04-07
Couso, Yon J.
Image analysis
Image transformation or preprocessing
Changing the image coordinates
382254, 382128, 36441319, G06K 942
Patent
active
057374562
ABSTRACT:
A method for processing a digitized image is described. The method includes the step of first generating a digitized image using an image-measuring system and representing the image as a vector g. A point spread function (PSF), represented as the function k(x,y,z), is also determined, with the PSF containing sub-pixels having a closer spacing than points in the g. Both the vector g and the function k(x,y,z) are then processed by: (a) selecting a vector c; (b) calculating the value of ##EQU1## using the vectors g and c, and the function k(x,y,z); and, (c) iteratively repeating steps (a) and (b) to determine a value for c that minimizes .PSI.(c). The image is then reconstructed by substituting in ##EQU2## the value for c that minimizes .PSI.(c) so that the processed image contains sub-pixels having a closer spacing than the points of the vector g.
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Carrington Walter A.
Fogarty Kevin E.
Couso Yon J.
University of Massachusetts Medical Center
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