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
Method, apparatus and article for detection of transponder tagged objects, for example during surgery
Method and composition for hyperthermally treating cells
Method and system for parallelizing data copy in a distributed file system
Cathode material for lithium ion secondary battery and lithium ion secondary battery using it
RF power amplifier circuit with mismatch tolerance
Agents for preventing and treating disorders involving modulation of the ryanodine receptors
Pattern transfer apparatus and method for fabricating semiconductor device
  Randomly Featured Patents
Method for analyzing movements in temporal sequences of digital images
User-oriented multimedia presentation system for multiple presentation items that each behave as an agent
Method for maintaining a group call
Self-aligning contacts for stacked electronics
Portion of a shoe upper
Method and apparatus for recycling photographic wash water
Portable movie camera
Selecting an optimal property of a keyword associated with program guide content for keyword retrieval
Irradiation chamber for photoactivation patient treatment system
Lifting and supporting device