Image sampling, reconstruction, and the effect of sample-scene phasing.
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.
Park
S K
SK
NASA Langley Research Center, Hampton, Virginia 23665, USA.
Schowengerdt
R A
RA