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An MTF method immune to aliasing

 

作者: Ronald T. Droege,   Mark S. Rzeszotarski,  

 

期刊: Medical Physics  （WILEY Available online 1998）
卷期: Volume 12, issue 6  

页码: 721-725

 

ISSN:0094-2405

 

年代: 1998

 

DOI:10.1118/1.595654

 

出版商: American Association of Physicists in Medicine

 

数据来源: WILEY

 

摘要:

The variance derived from the images of cyclic bar patterns can be used to determine the modulation transfer function (MTF) of an imaging system. Unlike most MTF methods, it is applicable even when the imaging system undersamples the test object and generates aliasing errors. The validity of the variance method in the presence of aliasing is established theoretically and by computer simulation.

 

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