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
Transfer of digital data through an isolation
Multilevel directory assistance apparatus and method
Magnetic resonance imaging apparatus for use with radiotherapy
Image forming apparatus and system connectable with an authorization apparatus via a communications network, the image forming apparatus comprising an apparatus control section, an initial inq
System and method for efficient association of a power outlet and device
Coupling device having piercing member
SIC semiconductor device and method for manufacturing the same
  Randomly Featured Patents
Bowstring release device
Solenoid armature cushion
Data relay system
Electrical connector suitable for use with variable numbers of electrical conductors
Augmentation of titer for vaccination in animals
Resilient carpet padding sheet
Preparation of a new flavanone derivative
Rear alignment and support system for a cooking appliance cooktop
Graft copolymers for ion exchange chromatography