Resources Contact Us Home
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
Vehicle wheel
Closed-loop adaptive adjustment of pacing therapy based on cardiogenic impedance signals detected by an implantable medical device
Direct converting apparatus, method for controlling the same, and control signal generation device
Method for production of a thermoelectric apparatus
Capacitance sensing
Refuelable battery-powered electric vehicle
Retransmission control method, base station and mobile station
  Randomly Featured Patents
Capacitor resistor
Cephalosporin compounds
Biologically pure culture of maltopentaose forming amylase producing alkalophilic bacteria
Timing control circuit of AC type plasma display panel system
Network event indicator system
Thermosettable imide compound and epoxy resin composition containing the same
Printing press circulation system
Method for non-volatile memory with linear estimation of initial programming voltage
Flow controllers