Resources Contact Us Home
Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image

Image Number 4 for United States Patent #5043890.

An x-ray CT system acquires attenuation data over a field of view which is larger than the field of view of the reconstructed image. The data used to reconstruct the image is compensated for the shading effects otherwise caused by objects outside the image, but within the x-ray path. This compensation is accomplished with minimal impact on computation time by using a first order estimation of the convolution of the acquired attenuation data outside the image field of view.

  Recently Added Patents
Modular utility rack
Optical signal output apparatus, electrical signal output apparatus, and test apparatus
Image forming apparatus
Vehicle front fender
Efficient implementation of hash algorithm on a processor
Modulators of cystic fibrosis transmembrane conductance regulator
Method for dropping packet data, radio communication device, and mobile communication system
  Randomly Featured Patents
Blue glass compositions
Frost free heat exchanger
Model railroad train control system
Computer program, method, and apparatus for grouping tasks into series
5-phenyl-2-furoic acid hydrazides
Illuminator having brightness compensation
Anti-theft protection device for a motor vehicle
Partially embedded database and an embedded database manager for a control system
Pneumatic tool
Method for processing Doppler signal gaps