Metadata
Author: springer
Data
English[en]
Unlike the FFBP utilizing two-dimensional image-domain interpolation for sub-aperture fusion, CT-FFBP finishes the image-projection using CT with the accommodation of chirp-z transform and circular shifting.
Chinese[zh]
与经典的基于二维图像域插值的快速后投影算法不同, 该算法利用坐标转化实现图像在不同局部极坐标系之间的投影, 进而相干叠加逐级提升分辨率, 坐标转化通过平移和chirp-z伸缩实现。