The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2003
Filed:
Jun. 27, 2002
Masaaki Ukita, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
An X-ray tube (X-ray focus) and an X-ray detector opposed to each other across an object synchronously scan the object to acquire radiographic data in each scan position. The radiographic data or data resulting from a filtering process of the radiographic data is projected back to a two-dimensional or three-dimensional reconstruction area virtually set to a region of interest of the object. Reconstruction software is used for causing a computer to perform reconstruction computations for each unit area (block) formed by dividing the reconstruction area. The reconstruction computations are performed successively for one unit area (block) after another in a way optimal to cache size. Data in cache memory are reused at an increased rate, and access to data in memory is reduced to shorten a time consumed by the reconstruction computations.