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Computer simulation of diffractive imaging lenses using hyperspectral images
S.I. Kharitonov 1,2, V.A. Fursov 1,2

1 IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
443001, Samara, Russia, Molodogvardeyskaya 151;
2 Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34

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DOI: 10.18287/2412-6179-CO-1274

Pages: 725-733.

Full text of article: Russian language.

Abstract:
We offer a computer technology for modeling a process of optical imaging with a diffractive imaging lens. The central idea of the technology is to evaluate the quality of the optical system by matching the input and output images against criteria adopted in image processing. For this purpose, same-resolution hyperspectral images are fed to the input and generated at the output. Thanks to the large number of spectral components, a fairly accurate reproduction of the effects associated with the dependence of the refractive index on the wavelength is ensured. To compare input and output images in terms of PSNR (peak signal-to-noise ratio), standard three-component RGB images are "assembled" using standard matching functions over the entire optical range. Results of the study of the dependence of the PSNR indicator on the main parameters of the optical system are given: focal length, linear aperture and the number of diffraction orders taken into account.

Keywords:
diffraction imaging lens, image modeling, geometric optics, harmonic lens.

Citation:
Kharitonov SI, Fursov VA. Computer simulation of diffractive imaging lenses using hyperspectral images. Computer Optics 2023; 47(5): 725-733. DOI: 10.18287/2412-6179-CO-1274 .

Acknowledgements:
This work was supported by the Ministry of Science and Higher Education within the government project No. 007-ГЗ/3363/26 of the FSRC “Crystallography and Photonics” RAS (Numerical modeling) and the government project FSSS-2021-0016 of Samara University (Multi-spectral imaging).

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