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

Image Number 13 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
Loudspeaker grille
Recording apparatus, recording method, reproducing apparatus, reproducing method, program, and recording/producing apparatus
Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making
Device for transmitting data between a serial data bus and working modules such as actuator modules and/or I/O modules
Method for preparing a .beta.-SiAlON phosphor
Modulation of TIM receptor activity in combination with cytoreductive therapy
Method and apparatus for providing very high throughput operation and capability signaling for wireless communications
  Randomly Featured Patents
Variable flow area refrigerant expansion device
Motor vehicle comprising tiltable gear shift unit and method of activating a parking brake forming part of the vehicle
Disulfide prodrugs and linkers and stabilizers useful therefor
Tightly coupled software protocol decode with hardware data encryption
Automatic centering method for a video camera
Communication device using an UWB wireless wave
Cooled liner for hot gas conduit
Powered drive for jack
Composition and slurry useful for metal CMP
Low profile antenna assembly for use in cellular communications