发明名称 |
Tree structure creation apparatus, method and program |
摘要 |
A predetermined structure repeatedly branching from an origin and extending in directions away from the origin in such a manner to become wider is extracted, as a candidate of a tree structure defined by a plurality of nodes including a root node corresponding to the origin and a plurality of edges, from medical image data. A tree structure is created by reevaluating the definition of the tree structure, with respect to each of the plurality of nodes defining the candidate of the tree structure, by using a cost function that weights a probability that the plurality of nodes are connected to each other by evaluating a relationship between each of the plurality of nodes and the root node based on a geometric characteristic that the predetermined structure repeatedly branches from the origin and extends in directions away from the origin in such a manner to become wider. |
申请公布号 |
US8761473(B2) |
申请公布日期 |
2014.06.24 |
申请号 |
US201213450325 |
申请日期 |
2012.04.18 |
申请人 |
Fujifilm Corporation |
发明人 |
Ihara Satoshi |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
McGinn IP Law Group, PLLC |
代理人 |
McGinn IP Law Group, PLLC |
主权项 |
1. A tree structure creation apparatus comprising:
a tree structure candidate extraction unit that extracts, from medical image data, a predetermined structure repeatedly branching from an origin and extending in directions away from the origin in such a manner to become wider, as a candidate of a tree structure defined by a plurality of nodes including a root node corresponding to the origin and a plurality of edges; and a tree structure creation unit that creates a tree structure by reevaluating the definition of the tree structure, with respect to each of the plurality of nodes defining the extracted candidate of the tree structure, by using a cost function that weights a probability that the plurality of nodes are connected to each other by evaluating a relationship between each of the plurality of nodes and the root node based on a geometric characteristic that the predetermined structure repeatedly branches from the origin and extends in directions away from the origin in such a manner to become wider.
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地址 |
Tokyo JP |