Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of compressing a dynamic range for a radiation image










Image Number 19 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
Base station, relay station, and bandwidth allocation method
Computer device with digitizer calibration system and method
Access control method, information display device using the same, and information display system
Liquid crystal display wherein the data lines covered by each pixel electrode are supplied with data signals of opposite polarities
Processing circuitry for use with a position sensor
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Piano keyboard with key touch point detection
  Randomly Featured Patents
Animal model for chronic obstructive pulmonary disease and cystic fibrosis
Optical system and image display apparatus
Double-layered thermal energy storage module
Organic light emitting device using inorganic insulating layer as an electron injecting layer and method for preparing the same
Device for detecting contaminants on conductive surfaces
Capped electric lamp and low-pressure mercury-vapor discharge lamp
Pulsed drug delivery of doxylamine
Set of stackable baseball dolls
High-torque apparatus and method using composite materials for deployment of a multi-rib umbrella-type reflector
Double-clad optical fiber for lasers and amplifiers