单轨道锥形光SPECT中Radon变换失值数据的评估  

ESTIMATION OF MISSING RADON TRANSFORM IN SINGLE-ORBIT CONE BEAM SPECT

作　　者：钱霖[1] 

机构地区：[1]苏州大学理学院物理系

出　　处：《数值计算与计算机应用》2000年第3期233-240,共8页Journal on Numerical Methods and Computer Applications

摘　　要：This study examined the effects of missing Radon transform on single-orbit cone beam SPECT image quality, and employed statistical Kriging in the estimation of missing data on Grangeat algorithm for two simulation phantoms. Evaluation studies found that Kriging estimation improved reconstruction image quality for an object containing sharp edges.This study examined the effects of missing Radon transform on single-orbit cone beam SPECT image quality, and employed statistical Kriging in the estimation of missing data on Grangeat algorithm for two simulation phantoms. Evaluation studies found that Kriging estimation improved reconstruction image quality for an object containing sharp edges.

关 键 词：锥形准直器 SPECT RADON变换 失值数据 

分 类 号：TN911.73[电子电信—通信与信息系统]