KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
发明人:
AHN, CHANG BEOM,안창범
申请号：
KR1020110093261
公开号：
KR1020130006247A
申请日:
2011.09.16
申请国别(地区):
KR
年份:
2013
代理人:
摘要：
PURPOSE: A method for restoring an image from a magnetic resonance signal is provided to reduce a data acquisition time.CONSTITUTION: Partial multi-frame spatial frequency data is obtained(301). Non-measured data is filled using peripheral date(302). A computer reconstructs a multi-frame image by performing two-dimensional fourier conversion(303). Average and standard deviation images between multi-frame are organized(304). The computer defines a domain of less than a given threshold as a still domain(305). The computer replaces the gray level of the multi-frame image of the still domain with the value of a average picture level(306). The computer converts the multi-frame image into multi-frame spatial frequency data(307). The spatial frequency is restored to measured data(308). The multi-frame image is re-organized(309).COPYRIGHT KIPO 2013[Reference numerals] (301) Obtaining partial multi-frame spatial frequency data (302) Initializing non-measured data with peripheral values (303) Reconstructing a multi-frame image by two-dimensional fourier conversion (304) Constructing average and standard deviation images between frames (305) Estimating a movement domain (306) Replacing the gray level of a still domain with the average value between the frames (307) Converting to multi-frame spatial frequency data by two-dimensional fourier reverse conversion (308) Restoring spatial frequency corresponding to a measured phase encoding value with measured data (309) Converting to multi-frame spatial frequency data by two-dimensional fourier conversion (310) Is the quality of an image improved ? (311) Converting to a time frequency image by one-dimensional fourier conversion with respect to time (312) Removing a coefficient which is smaller than a pre-determined threshold (313) Reconstructing a multi-frame image by one-dimensional fourier conversion with respect to time frequency (AA) Start (BB) Yes (CC) No (DD) End대상체인 인체 내의 심장과 같이 움직임이 빠른 장기를 측정하기 위해 데이터를 줄여서 획득하는 자기 공명 신호로부터 영
