Image analysis – Image transformation or preprocessing – Changing the image coordinates
Reexamination Certificate
2007-08-28
2007-08-28
Patel, Kanjibhai (Department: 2624)
Image analysis
Image transformation or preprocessing
Changing the image coordinates
C382S128000
Reexamination Certificate
active
10747594
ABSTRACT:
A digital image processing method for image registration, that acquires a reference intensity image and a floating intensity image that is to be registered; and preprocesses the reference and the floating images, before converting the preprocessed reference image to a vectorized reference image. Subsequently, the vectorized reference image is converted to a reference index image. Additional image processing includes spatially transforming the preprocessed floating image using a transformation matrix; converting the transformed floating image to a vectorized floating image; converting the vectorized floating image to a floating index image; and obtaining joint statistics of the index images. Other steps include, computing a cost function due to misalignment of the two images using the joint statistics; and updating the transformation matrix and repeating several aforementioned steps, if the cost function does not satisfy a predefined criterion, otherwise, applying the transformation matrix to an acquired floating intensity image.
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Cahill Nathan D.
Chen Shoupu
Goodgame Marvin M.
Ray Lawrence A.
Williams Cranos M.
Carestream Health Inc.
Patel Kanjibhai
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