发明名称 |
Procedure for detection of contours of highly absorbent matter within an X-ray image involves image processing to determine potential contour closed paths and contrast determination of the correct path to improve image processing |
摘要 |
Procedure involves determination of a number of closed paths in an X-ray image or an image derived from an X-ray image and then selection of one path from the number of closed paths as a contour dependent on the contrast on either side of the closed path. The closed paths are determined by determination of contour point candidates, using a high pass filter or gradient image, from the spatial path of the pixels of the X-ray image and determination of a number of line candidates which are comprised of a series of contour points and formation of a closed path from line segments (maximum four). |
申请公布号 |
DE19916821(A1) |
申请公布日期 |
2000.10.19 |
申请号 |
DE1999116821 |
申请日期 |
1999.04.14 |
申请人 |
PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH |
发明人 |
WIEMKER, RAFAEL;DIPPEL, SABINE;BUZUG, THORSTEN;STAHL, MARTIN;BLAFFERT, THOMAS |
分类号 |
G06T5/00 |
主分类号 |
G06T5/00 |
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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