Resources Contact Us Home
Method of compressing a dynamic range for a radiation image

Image Number 10 for United States Patent #5471987.

A dynamic range compression method for a radiation image for obtaining processed image signal carrying an image having a dynamic range that is narrower than that of the original image, by processing original image signal representing an original image based on radiation image information transmitted through an object. The method is for obtaining unsharp mask signal by averaging the original image signal in a predetermined mask area containing each pixel point corresponding to each pixel point and for correcting original image signal by providing a correction value that is a function of the unsharp mask signal to obtain a processed image signal. Weighting is applied corresponding to an absolute value of a signal different between a central pixel and a peripheral pixel both within a mask area in the averaging process for obtaining the unsharp mask signal.

  Recently Added Patents
Predictive time entry for workforce management systems
Method and system for electronic distribution of product redemption coupons
High power fiber amplifier with stable output
System and method for redirected firewall discovery in a network environment
System and method for providing advice to consumer regarding a payment transaction
Liquid-level sensor
  Randomly Featured Patents
Method and apparatus for parallel carry chains
Polarity ring director
Air-compressing four-cycle internal combustion engine with direct fuel injection
Pressure-resistant helical corrugated pipe
Secondary battery
User-cued speech recognition
Method and system for provisioning of resources
Hinge with a locking device
Polymer of vinyl-biphenyl derivative adapted for optical use
Projection synchronization system