THREEDIMENSIONAL RECONSTRUCTION FOR IRREGULAR ULTRASOUND SAMPLING GRIDS

摘要

for imaging, ultrasound irregular sampling grid is reconstructed by three-dimensional grid. Obtained 40 using the spiral transducer, and therefore the volume data including a fractional offset (fractional offset) of spaced data to one-dimensional, irregularly sampled grid ultrasound are caused. Determining a voxel value for the grid points on a uniform grid 42, to, two adjacent planes are identified (44). Sample position in the two planes are not aligned, and on the ultrasound irregular sampling grid. The hardware acceleration devices, such as graphics processing units (12) that performs a bilinear interpolation (46) within each of the planes. Data of each plane has an appropriate global azimuth corresponding to the grid points - are interpolated to the coordinate distance (46). By bilinear interpolation from the respective plane values are interpolated (48) to the next in a linear grid point to. ;