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US 8,897,524 B2Granted
Method and device for processing computerized tomography images
AssigneeRamot at Tel-Aviv University Ltd.
InventorsHedva Spitzer, Hadar Cohen-Duwek, Yuval Barkan
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Abstract
A method of processing a computerized tomography image is disclosed. The method comprises preprocessing the image using contrast enhancement weight function, thereby providing a preprocessed image having a first dynamic range; and applying a companding procedure to the preprocessed image, so as to reduce the first dynamic range.
Claims24
A method of processing a computerized tomography (CT) image, comprising:
- (a) preprocessing the image using contrast enhancement weight function having a local maximum and a local minimum as a function of the CT intensity, thereby providing a preprocessed image having a first dynamic range;
- and
- (b) applying a companding procedure to said preprocessed image, so as to reduce said first dynamic range;
- thereby processing the image.
1 more element
Apparatus for processing a computerized tomography (CT) image, comprising:
- (a) a preprocessing unit configured for preprocessing the image using contrast enhancement weight function having a local maximum and a local minimum as a function of the CT intensity, thereby to provide a preprocessed image having a first dynamic range;
- and
- (b) companding unit configured for applying a companding procedure to said preprocessed image, so as to reduce said first dynamic range.
Dependencies are inferred from the claim text.