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    • 3. 发明申请
    • TREE STRUCTURE EXTRACTION APPARATUS, METHOD AND PROGRAM
    • 树结构提取装置,方法和程序
    • US20120275682A1
    • 2012-11-01
    • US13454765
    • 2012-04-24
    • Satoshi IHARA
    • Satoshi IHARA
    • G06K9/46
    • G06T7/0012G06T7/143G06T2207/10072G06T2207/20072G06T2207/30101
    • Tree structures corresponding to a first linear structure and a second linear structure are constructed from medical image data including the first linear structure and the second linear structure, each repeatedly branching from an origin and extending in directions away from the origin in such a manner to become wider. Each of a first root node corresponding to a root node in the first tree structure and a second root node corresponding to a root node in the second tree structure is connected to each node, based on the characteristic that each of the first and second linear structures repeatedly branches from the origin and extends in directions away from the origin in such a manner to become wider, by using, with respect to each node, a cost function that weights a cost representing a probability of connection of each of a plurality of edges connectable to each node.
    • 对应于第一线性结构和第二线性结构的树结构由包括第一线性结构和第二线性结构的医学图像数据构成,每个从原点重复地分支并且在远离原点的方向上延伸,从而成为 更宽的。 基于第一和第二线性结构中的每一个的特性,与第一树结构中的根节点相对应的第一根节点和对应于第二树结构中的根节点的第二根节点连接到每个节点 通过使用相对于每个节点的成本函数来加权代表可连接的多个边缘中的每一个的连接概率的成本,成本函数重复地从原点分支并且以远离原点的方式延伸,以变得更宽 到每个节点。
    • 7. 发明申请
    • TOMOGRAPHIC IMAGE GENERATING APPARATUS, TOMOGRAPHIC IMAGE GENERATING METHOD, AND PROGRAM FOR GENERATING TOMOGRAPHIC IMAGES
    • 图像图像生成装置,图像图像生成方法和用于产生图像图像的程序
    • US20110170758A1
    • 2011-07-14
    • US12982323
    • 2010-12-30
    • Satoshi IHARA
    • Satoshi IHARA
    • G06K9/00
    • A tomographic image generating apparatus includes a tomographic image acquirer for acquiring a plurality of first tomographic images perpendicular to a predetermined direction from a three-dimensional medical image including an organ having a predetermined linear structure, a first detector for detecting sectional shapes of the organ which are included respectively in the first tomographic images, a curve generator for generating a first curve as an approximate curve by interpolating respective positions of the detected sectional shapes of the organ, and a tomographic image generator for generating a plurality of second tomographic images perpendicular to the first curve from the three-dimensional medical image.
    • 断层图像生成装置包括:断层图像获取装置,用于从包括具有预定线性结构的器官的三维医学图像获取垂直于预定方向的多个第一断层图像;第一检测器,用于检测器官的截面形状; 分别包括在第一层析图像中,曲线生成器,用于通过内插检测到的器官的截面形状的各个位置来生成第一曲线作为近似曲线,以及断层图像生成器,用于生成垂直于第一断层图像的多个第二断层图像 从三维医学图像的第一曲线。
    • 10. 发明授权
    • Tree structure creation apparatus, method and program
    • 树结构创建装置,方法和程序
    • US08761473B2
    • 2014-06-24
    • US13450325
    • 2012-04-18
    • Satoshi Ihara
    • Satoshi Ihara
    • G06K9/00
    • G06T7/162G06T7/13G06T2207/10081G06T2207/20076G06T2207/30056G06T2207/30061G06T2207/30172
    • 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.
    • 作为由多个节点定义的树结构的候选者,提取从原点重复分支并且以更远的方式远离原点延伸的预定结构,其包括与原点对应的根节点的多个节点和多个节点 的边缘,从医学图像数据。 通过使用加权多个节点彼此连接的概率的成本函数,通过重新评估树结构的定义,相对于定义树结构候选的多个节点中的每一个,重新评估树结构 通过基于预定结构从原点重复分支并沿远离原点的方向延伸的几何特征来评估多个节点和根节点中的每一个之间的关系以变得更宽。