Abstract
Abstract. One-dimensional modulation transfer function (1-D MTF) has been generally calculated to evaluatethe image quality of optical imaging systems, such as the horizontal MTF and vertical MTF. These MTFs can bemeasured by the use of some mature ways. However, the information of 1-D MTF for performance evaluationmay not enough for the systems handling two-dimensional (2-D) targets of high resolution, thus discussing 2-DMTF will be necessary. We investigate the measurement method for the 1-D and 2-D MTF of optical imagingsystems based on the random target method, and the characteristics of 2-D MTF and 1-D MTF in terms of MTFvalues and cutoff frequency are also noted. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 UnportedLicense. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. [DOI: 10.1117/1.OE.53.10.104105] Keywords: image quality evaluation; modulation transfer function; random image; liquid-crystal display; fast Fourier transform; powerspectral density.Paper 140973 received Jun. 18, 2014; revised manuscript received Sep. 16, 2014; accepted for publication Sep. 26, 2014; publishedonline Oct. 30, 2014.
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