公开(公告)号：US09336598B2

公开(公告)日：2016-05-10

申请号：US14131198

申请日：2012-02-28

申请人： Yutaka Ohtake ,  Hiromasa Suzuki ,  Takuma Niizaka ,  Daiki Yamanaka

发明人： Yutaka Ohtake ,  Hiromasa Suzuki ,  Takuma Niizaka ,  Daiki Yamanaka

IPC分类号： G06K9/00 ,  G06T7/00 ,  G01N23/04 ,  G06T11/00

CPC分类号： G06T7/0051 ,  G01N23/046 ,  G01N2223/401 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/424 ,  G06T2211/436

摘要： An unknown surface shape of a physical object can be extracted with good precision. Image data of a projective image that has been acquired by radiation projection to an object is acquired. Next, a predetermined mesh structure is used to acquire cross-sectional images of the subject from image data of the projective images by reconstruction using tomography. Lattice points constituting the mesh structure are then moved in conformity with the surface shape of the object, based on the cross-sectional image that has been acquired by reconstruction. Reconstruction is carried out again using the mesh whose lattice point positions have been corrected. Movement on the reconstruction of the lattice points is then repeated as many times as required.

摘要翻译： 可以精确地提取物理对象的未知表面形状。 获取通过对物体的辐射投影获得的投影图像的图像数据。 接下来，使用预定的网状结构，通过使用层析成像进行重建，从投影图像的图像数据中获取被摄体的截面图像。 基于通过重构获得的横截面图像，构成网状结构的格子点随着物体的表面形状而移动。 使用其格点位置已被校正的网格再次进行重构。 然后根据需要重复格点重建的移动次数。

公开(公告)号：US20140169651A1

公开(公告)日：2014-06-19

申请号：US14131198

申请日：2012-02-28

申请人： Yutaka Ohtake ,  Hiromasa Suzuki ,  Takuma Niizaka ,  Daiki Yamanaka

发明人： Yutaka Ohtake ,  Hiromasa Suzuki ,  Takuma Niizaka ,  Daiki Yamanaka

IPC分类号： G06T7/00

CPC分类号： G06T7/0051 ,  G01N23/046 ,  G01N2223/401 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/424 ,  G06T2211/436

摘要： An unknown surface shape of a physical object can be extracted with good precision. Image data of a projective image that has been acquired by radiation projection to an object is acquired. Next, a predetermined mesh structure is used to acquire cross-sectional images of the subject from image data of the projective images by reconstruction using tomography. Lattice points constituting the mesh structure are then moved in conformity with the surface shape of the object, based on the cross-sectional image that has been acquired by reconstruction. Reconstruction is carried out again using the mesh whose lattice point positions have been corrected. Movement on the reconstruction of the lattice points is then repeated as many times as required.

摘要翻译： 可以精确地提取物理对象的未知表面形状。 获取通过对物体的辐射投影获得的投影图像的图像数据。 接下来，使用预定的网状结构，通过使用层析成像进行重建，从投影图像的图像数据中获取被摄体的截面图像。 基于通过重构获得的横截面图像，构成网状结构的格子点随着物体的表面形状而移动。 使用其格点位置已被校正的网格再次进行重构。 然后根据需要重复格点重建的移动次数。