Open AccessAerial image resolution measurement based on the slanted knife edge method
Author(s) -
Norikazu Kawagishi,
Ryota Kakinuma,
Hirotsugu Yamamoto
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.408983
Subject(s) - optical transfer function , aerial image , optics , computer vision , image resolution , artificial intelligence , point spread function , enhanced data rates for gsm evolution , computer science , resolution (logic) , image processing , image (mathematics) , physics
Image resolution is one of the most important performance specifications of aerial display techniques. However, there is no standard method for evaluating the aerial image resolution. In this paper, we propose a method for measuring the modulation transfer function (MTF) of an aerial imaging system based on the slanted knife edge method. We hypothesize that aerial images have a different blur function from standard camera images. In order to explore this, we simulate blurred slanted knife edge images by convolving two types of blur functions. Furthermore, the MTF curves of the aerial image formed using different retro-reflectors are compared using the proposed method.