公开(公告)号：US08922554B2

公开(公告)日：2014-12-30

申请号：US13051706

申请日：2011-03-18

申请人： Mervin Smith-Casem ,  Patric Ljung ,  Guillaume Stordeur ,  Jian-Hua Mo ,  Bruce McDermott

发明人： Mervin Smith-Casem ,  Patric Ljung ,  Guillaume Stordeur ,  Jian-Hua Mo ,  Bruce McDermott

IPC分类号： G06T17/00 ,  G01S7/52 ,  G01S15/89

CPC分类号： G01S7/52034 ,  G01S15/8993

摘要： An irregular ultrasound sampling grid is reconstructed to a three-dimensional grid for imaging. Volume data acquired with a helix transducer includes a fractional offset of data spaced along one dimension, resulting in the irregular ultrasound sampling grid. To determine a voxel value for a grid point on a uniform grid, two adjacent planes are identified. The sample locations in the two planes are not aligned, being on the irregular ultrasound sampling grid. Hardware acceleration devices, such as a graphics processing unit, perform bilinear interpolation in each of the planes. The data of each plane is interpolated to the proper global azimuth-range coordinate corresponding with the grid point. The bilinearly interpolated values from each plane are then linearly interpolated to the grid point.

摘要翻译： 将不规则超声波采样网格重建为三维网格进行成像。 使用螺旋传感器获取的体数据包括沿着一个维度间隔开的数据的分数偏移，导致不规则的超声波采样网格。 为了确定统一网格上的网格点的体素值，识别出两个相邻的平面。 两个平面中的样品位置不对齐，位于不规则超声波采样网格上。 诸如图形处理单元的硬件加速装置在每个平面中执行双线性插值。 每个平面的数据被内插到与网格点对应的正确的全局方位角范围坐标。 然后将来自每个平面的双线性内插值线性插值到网格点。

公开(公告)号：US20120235998A1

公开(公告)日：2012-09-20

申请号：US13051706

申请日：2011-03-18

申请人： Mervin Smith-Casem ,  Patric Ljung ,  Guillaume Stordeur ,  Jian-Hua Mo ,  Bruce McDermott

发明人： Mervin Smith-Casem ,  Patric Ljung ,  Guillaume Stordeur ,  Jian-Hua Mo ,  Bruce McDermott

IPC分类号： G06T17/00

CPC分类号： G01S7/52034 ,  G01S15/8993

摘要： An irregular ultrasound sampling grid is reconstructed to a three-dimensional grid for imaging. Volume data acquired with a helix transducer includes a fractional offset of data spaced along one dimension, resulting in the irregular ultrasound sampling grid. To determine a voxel value for a grid point on a uniform grid, two adjacent planes are identified. The sample locations in the two planes are not aligned, being on the irregular ultrasound sampling grid. Hardware acceleration devices, such as a graphics processing unit, perform bilinear interpolation in each of the planes. The data of each plane is interpolated to the proper global azimuth-range coordinate corresponding with the grid point. The bilinearly interpolated values from each plane are then linearly interpolated to the grid point.

摘要翻译： 将不规则超声波采样网格重建为三维网格进行成像。 使用螺旋传感器获取的体数据包括沿着一个维度间隔开的数据的分数偏移，导致不规则的超声波采样网格。 为了确定统一网格上的网格点的体素值，识别出两个相邻的平面。 两个平面中的样品位置不对齐，位于不规则超声波采样网格上。 诸如图形处理单元的硬件加速装置在每个平面中执行双线性插值。 每个平面的数据被内插到与网格点对应的正确的全局方位角范围坐标。 然后将来自每个平面的双线性内插值线性插值到网格点。