TOMOGRAPHY APPARATUS AND METHOD FOR A TOMOGRAPHY IMAGE THEREOF

Disclosed is a tomography apparatus which can reduce a blurring artifact which can occur in a restored tomography image. The tomography apparatus comprises: a control unit for estimating a plurality of PSFs respectively corresponding to a plurality of positions based on a plurality of sample images...

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Bibliographic Details
Main Authors LIM, JAE GUYN, YOO, SANG WOOK, KIM, HYO GEUN, YI, JONG HYON, LEE, GUN WOO
Format Patent
LanguageEnglish
Korean
Published 25.01.2017
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:Disclosed is a tomography apparatus which can reduce a blurring artifact which can occur in a restored tomography image. The tomography apparatus comprises: a control unit for estimating a plurality of PSFs respectively corresponding to a plurality of positions based on a plurality of sample images obtained by performing tomography on a sample object at the plurality of different positions, and generating a PSF map representing a PSF changed by a position of an FOV formed in a gantry based on the estimated PSF; and an image process unit for obtaining a final tomography image by deblurring a tomography image based on the PSF map. 샘플 객체를 서로 다른 복수개의 위치에서 각각 단층 촬영하여 획득된 복수개의 샘플 영상에 기초하여, 상기 복수개의 위치에 각각 대응되는 복수개의 PSF를 추정하고, 상기 추정된 PSF에 기초하여 갠트리 내에 형성되는 FOV의 위치에 따라 변화하는 PSF를 나타내는 PSF 맵을 생성하는 제어부, 및 상기 PSF 맵에 기초하여 단층 영상을 디블러링 하여, 최종 단층 영상을 획득하는, 영상 처리부를 포함하는 단층 촬영 장치가 개시된다.
Bibliography:Application Number: KR20150101910