The efficiency of single-pinhole and multi-pinholecollimator is compared based on a imaging geometric model.
在成像几何模型的基础上，通过分析和计算，研究了。
2
The result proves that the efficiency of multi-pin-hole collimator is indeed higher than that of single-pinholecollimator for our hypothetical model.
结果表明，所假设模型基础上，多针孔成像确实在一定程度上要比单针孔成像探测效率高。
3
Because of the projection image overlap due to coded-pinholecollimator, the completeness of projection data and volume image reconstruction algorithm are discussed.