Open AccessInterpretation of moiré phenomenon in the image domain
Author(s) -
Lingsheng Kong,
Shaohong Cai,
Zongxuan Li,
Guang Jin,
Shangbing Huang,
Kai Xu,
Tiancong Wang
Publication year - 2011
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.19.018399
Subject(s) - moiré pattern , optics , interpretation (philosophy) , fourier transform , image (mathematics) , frequency domain , domain (mathematical analysis) , waveform , line (geometry) , physics , computer science , mathematical analysis , computer vision , mathematics , geometry , quantum mechanics , voltage , programming language
We propose an interpretation of moiré phenomenon in the image domain. The interpretation is basically based on the analysis of the waveform of the line families. The period, angle, and intensity profile of moiré fringes can be obtained directly in the image domain according to this interpretation. Moreover, pseudo-moiré can be interpreted visually with the consideration of the illusional contrast of the human visual system. The interpretation, which is consistent with the Fourier theory when the two superposed gratings are periodic, involves only the image domain and shows remarkable simplicity, just like the indicial equation method.