发明名称 |
ADAPTATION OF POTENTIAL TERMS IN REAL-TIME OPTIMAL PATH EXTRACTION |
摘要 |
The invention relates to a method for segmenting an image [IM] by path extraction using minimization of at least a potential [POT], said potential being calculated [CAS] from a feature [FEA] of the image [IM] using a cost assignment function [CAF], said calculation [CAS] being realized using the definition of two groups of points [NP and PP] in a neighborhood of a drawn [DRW] contour: the ones that are considered to be relevant to a boundary, called positive points [PP] and the ones that are not considered to be relevant to said boundary, called negative points [NP]. A refined characterization of positive points is constructed by combining characterizations of positive and negative points and the cost assignment function [CAF] is modified [CAL] using this refined characterization. The invention proposes also a fully automatic simultaneous adaptation of the different cost assignment functions of the individual potentials in a total function of potentials, and their relative weightings. |
申请公布号 |
WO03001451(A2) |
申请公布日期 |
2003.01.03 |
申请号 |
WO2002IB02593 |
申请日期 |
2002.06.26 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;GERARD, OLIVIER;GREFF, MYRIAM;DESCHAMPS, THOMAS |
发明人 |
GERARD, OLIVIER;GREFF, MYRIAM;DESCHAMPS, THOMAS |
分类号 |
G06T7/00;G06T5/00 |
主分类号 |
G06T7/00 |
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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