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1. US20120321036 - X-ray CT scanner and image processing apparatus

Office United States of America
Application Number 13584340
Application Date 13.08.2012
Publication Number 20120321036
Publication Date 20.12.2012
Grant Number 08781063
Grant Date 15.07.2014
Publication Kind B2
IPC
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23
Investigating or analysing materials by the use of wave or particle radiation not covered by group G01N21/ or G01N22/159
02
by transmitting the radiation through the material
04
and forming a picture
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36
Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46
Extraction of features or characteristics of the image
G01N 23/04
G06K 9/46
CPC
G06T 11/005
A61B 6/5264
Applicants Nakanishi Satoru
Kabushiki Kaisha Toshiba
Toshiba Medical Systems Corporation
Inventors Nakanishi Satoru
Agents Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Priority Data 2011133121 15.06.2011 JP
Title
(EN) X-ray CT scanner and image processing apparatus
Abstract
(EN)

According to one embodiment, an X-ray CT scanner includes a gantry unit, a reconstruction unit, an extraction unit, and an output unit. The gantry unit includes an X-ray source and an X-ray detector and is configured to rotate the source and the detector. The reconstruction unit generates reconstruction image data by using data acquired by the detector. The extraction unit extracts, when using a predetermined phantom as the object, pixel values of pixels existing on a locus surrounding a tomographic image of the phantom contained in reconstruction image data generated by the reconstruction unit based on data acquired by the detector. The output unit outputs an extraction result obtained by the extraction unit or information obtained based on the extraction result.

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