Park S K, Schowengerdt R A
NASA Langley Research Center, Hampton, Virginia 23665, USA.
Appl Opt. 1982 Sep 1;21(17):3142-51. doi: 10.1364/AO.21.003142.
This paper is a 1-D analysis of the degradation caused by image sampling and interpolative reconstruction. The analysis includes the sample-scene phase as an explicit random parameter and provides a complete characterization of this image degradation as the sum of two terms: one term accounts for the mean effect of undersampling (aliasing) and nonideal reconstruction averaged over all sample-scene phases; the other term accounts for variations about this mean. The results of this paper have application to the design and performance analysis of image scanning, sampling, and reconstruction systems.
本文是对图像采样和插值重建所导致的退化进行的一维分析。该分析将采样场景相位作为一个显式随机参数，并将这种图像退化完整地表征为两项之和：一项考虑欠采样（混叠）和非理想重建在所有采样场景相位上的平均效应；另一项考虑围绕该均值的变化。本文的结果可应用于图像扫描、采样和重建系统的设计与性能分析。
