Open AccessCONSTRUCTIVE THEORY OF IMAGE FORMATION FOR OBJECTS IN PARTIALLY COHERENT LIGHT
Author(s) -
Yuri V. Chugui
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-8-200-211
Subject(s) - constructive , aperture (computer memory) , binary number , transformation (genetics) , convolution (computer science) , optics , image formation , diffraction , object (grammar) , computer science , mathematics , image (mathematics) , physics , computer vision , artificial intelligence , process (computing) , arithmetic , biochemistry , chemistry , acoustics , artificial neural network , gene , operating system
The constructive (approximate) theory of image formation for one-dimensional binary objects by a partially coherent projective diffraction-limited system at any ratio of the angular sizes of a light source and an aperture diaphragm is developed. For such objects the solution of a two-dimensional task can be consolidated to one-dimensional: to calculation of integral in the form of convolution of an object with the generalized pulse response with the subsequent nonlinear transformation. It is shown that the profile of the images created in partially coherent light is defined by the threshold system performance providing reliable finding of edge position of binary objects. Approximation of this characteristic is proposed. The theory allows simple physical interpretation of the phenomena in partially coherent projective systems.