微扫描减少光电成像系统频谱混淆的数学原理及实现

Mathematics Theory and Realization of Aliasing Reduction in Opto Electric Imaging System Using Microscanning

光电成像系统由于欠抽样引起频谱混淆， 推导分析了包括均匀微扫描在内的非均匀微扫描方法在减少混淆方面的数学原理以及与亚像素位移之间的关系， 同时用计算机模拟实现了微扫描的一维和二维过程。

In the opto electric imaging system, aliasing will occur when sampling a scene containing spatial frequencies exceeding half of the sampling frequency. Microscanning is a potential method to reduce aliasing effect. Mathematical theory for microscanning based aliasing reduction, including non even cases, is analysed. Computer simulation of microscanning realization for both one and two dimensional cases is presented.