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US 2008/0166034 A1Published application
Tone scale transformation for radiological images
AssigneeCarestream Health, Inc.
InventorsMary E. Couwenhoven, Michael D. Heath, Xiaohui Wang, Heidi D. Zhang, Patrick B. Heffernan
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Abstract
A method for transforming radiological image data from a digital receiver obtains digital image data values from the digital receiver and compensates for exposure response differences between a screen film system and the digital receiver. Modulation transfer function differences between the screen film system and the digital receiver are compensated and noise content at frequencies approaching the Nyquist frequency for the digital receiver is suppressed.
Claims9
A method for transforming radiological image data from a digital receiver comprising:
- (a) obtaining digital image data values from the digital receiver;
- (b) compensating for the exposure response differences between a screen film system and the digital receiver;
- (c) compensating for modulation transfer function differences between the screen film system and the digital receiver;
- and
- (d) suppressing the noise content at frequencies approaching the Nyquist frequency for the digital receiver.
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Dependencies are inferred from the claim text.