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
Apparatus and method for an iterative cryptographic block
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
Fused thiazole derivatives as kinase inhibitors
Customizing a range of acceptable tape dimensional stability write conditions
Supplier capability methods, systems, and apparatuses for extended commerce
Watch dial
  Randomly Featured Patents
Anchoring sleeve assembly and method of use
System for processing a quantized vector using spatial frequency correlations
Image processing system
Fuel cell separator and production method therefor
Trash can
Method of preventing gas migration during primary well cementing
Process for the preparation of 2,2-dimethylolalkanals
Process for producing a hydrodynamic bearing having internal foil cartridge
Laser irradiation method that includes moving a center of rotation along a straight line in order to enhance the crystallinity of the semiconductor film