发明名称 |
Method and system of compensation of thickness of an organ |
摘要 |
<p>Method and system for compensating for the thickness of an organ in a radiology instrument, in which an image of the radiological thicknesses of the organ through which the X-ray beam has passed is calculated (15) on the basis of a digitized image, the thickness image is filtered using a low-pass filter (16) in order to obtain a low-frequency image, the low-frequency image is subtracted (18) from the radiological thickness image in order to obtain a contrast image, the low-frequency image is processed (17) using a pre-recorded table taking into account a contract chi selected by a user in order to obtain an image with reduced dynamic range, and the image with reduced dynamic range is added (19) to the contrast image in order to obtain a compensated thickness image, the pixels having a level below or above a predetermined threshold being returned at least to the value of the said threshold, while preserving the differences and real ratios between the anatomical structures. <IMAGE></p> |
申请公布号 |
EP1113392(A1) |
申请公布日期 |
2001.07.04 |
申请号 |
EP20000311605 |
申请日期 |
2000.12.22 |
申请人 |
GE MEDICAL SYSTEMS SA |
发明人 |
NICOLAS, FRANCOIS;MULLER, SERGE;LIENARD, JEAN;SOUBELET, ELISABETH;RICK, ANDREAS |
分类号 |
A61B6/00;G06T1/00;G06T5/40;(IPC1-7):G06T5/40 |
主分类号 |
A61B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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