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
Tracking data eye operating margin for steady state adaptation
Multiple-frequency inversion method and control apparatus for internal combustion engine driven generator
Liquid crystal display device
Mobile terminal device capable of more effectively utilizing operation portions, conductive portion, operation detecting unit, power supply unit, and signal processing unit
LED lighting module
Integrated circuit with electromagnetic intrachip communication and methods for use therewith
Method of allocating IP address of image forming apparatus using DHCP, image forming apparatus and system of allocating IP address using DHCP
  Randomly Featured Patents
Polyolefin resin composition
Two-latch clocked-LSSD flip-flop
Process for the manufacture of aminoplast and phenoplast moulding compositions using a fluidized bed drier
Method for coating fabrics formed into hand gloves
Argyranthemum frutescens plant named `Argyminpifi`
Personal computer wherein ECC and partly error checking can be selectively chosen for memory elements installed in the system, memory elements enabling selective choice of error checking, and
Take-up pulley with torque-limiting mechanism for magnetic recording and reproducing apparatus
Doping of IIB-VIA semiconductors during molecular beam epitaxy using neutral free radicals
Thermal inkjet printhead having driver circuitry thereon and method for making the same
Low profile side emission TIR lens for LED