Image analysis – Image transformation or preprocessing – Changing the image coordinates
Reexamination Certificate
2006-01-31
2011-12-06
Kim, Robert (Department: 2881)
Image analysis
Image transformation or preprocessing
Changing the image coordinates
C382S128000, C382S130000, C382S131000, C382S197000, C382S275000
Reexamination Certificate
active
08073290
ABSTRACT:
A method of registering biomedical images to reduce imaging artifacts caused by object movement is disclosed, wherein a certain number of features or landmarks is automatically defined and tracked in a first and second image to be registered to determine the optical flow vector between the first and second image. Registration then takes place by applying the inverse optical flow to the second image. The automatic feature selection step is carried out by determining the mean signal intensity in a defined neighborhood for every pixel, which mean signal intensity is then compared to a predetermined threshold. If the mean signal intensity value of said neighborhood is higher than the predetermined threshold the pixel is defined as a feature and is added to a list of features to be tracked.
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Faber Heiner
Mayer Dirk
Vomweg Toni Werner
Bracco Imaging S.p.A.
Kim Robert
Logie Michael
Themis Law
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