Image analysis – Histogram processing – For setting a threshold
Patent
1992-12-03
1994-03-15
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
382 6, 382 45, G06K 932
Patent
active
052952002
ABSTRACT:
A method and apparatus are provided for quickly determining misalignment between two images. Patient misalignment calculations can performed on-line using Fourier correlation analysis to compare the location of a portal field of radiation with a previously stored portal reference field. Fourier comparisons are done in both hardware and software which rapidly computes misalignment of a patient relative to the portal field and can also rapidly reposition the patient with respect to that field.
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Board of Regents , The University of Texas System
Johns Andrew W.
Moore David K.
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