发明名称 |
Contour extraction method by a mixed approach involving active contours and tracking |
摘要 |
An initial straight line contour segment is entered manually (10) on to the digital image screen using a mouse. An algorithm minimising the energy of the contour is then used to deform it (30) to a position of equilibrium which comprises the current segment. A matrix with it's long side orientated at right angles to the manually entered segment and centred at the end of it is used to generate a vector reference correlation nucleus (20). A group of similar matrices arranged in a circle around the same point produce tangent vectors and their correlation with the first vector determines the orientation of the next segment (40). |
申请公布号 |
EP0749097(A1) |
申请公布日期 |
1996.12.18 |
申请号 |
EP19960401259 |
申请日期 |
1996.06.11 |
申请人 |
ALCATEL |
发明人 |
RENOUARD, FREDERIC;REZZOUK, JAMAL |
分类号 |
G06T7/60;G06K9/00;G06K9/48;G06T5/00 |
主分类号 |
G06T7/60 |
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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