The nature of noise in digital radiography, their modeling and ways of suppression in the digital radiographic image (review)

Kosarina E.I., Mikhailova N.A., Suvorov P.V., Demidov A.A.
UDC
620.192.63
DOI
10.18577/2307-6046-2023-0-6-142-152
Article PDF (Russian) (843.27 KB)
How to cite
Kosarina E.I., Mikhailova N.A., Suvorov P.V., Demidov A.A. The nature of noise in digital radiography, their modeling and ways of suppression in the digital radiographic image (review) // Proceedings of VIAM. 2023. No. 6. DOI: 10.18577/2307-6046-2023-0-6-142-152. URL: https://test.viam.ru/en/journal/2023/6/12
Keywords
digital radiography, digital image, pixel, quantization noise, fluktuatsionny noise, space range of the image
Abstract

Questions of the nature of noise are considered when forming digital radiographic images. Classification of types of noise is carried out and are defined, what of its types it is possible to clean from the digital image. Ways of modeling of noise and assessment of their level, and also suppression are studied; merits and demerits of each of the considered ways are noted. It is shown, what noise arise at stages of forming of radiation images and their transformations to the digital. It is noted that the quantization noise cannot be eliminated with the subsequent filtering as is the integral characteristic of digital detector system.

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