Efficiency increasing of medical diagnostic systems which use multispectral processing method

Kirill Zaitchenko; Boris Gurevich

doi:10.1117/12.2624445

24 May 2022 Efficiency increasing of medical diagnostic systems which use multispectral processing method

Kirill Zaitchenko, Boris Gurevich

Proceedings Volume 12146, Clinical Biophotonics II; 121460E (2022) https://doi.org/10.1117/12.2624445
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Conference Poster

Abstract

The modern medical diagnostical system often use the method of multispectral processing of images based on the initial polychromic image transformation into the consequence of monochrome sub-images. Each of them is formed only by light of the narrow selected spectral sub-range. The best results of multispectral processing can be obtained if an acoustooptic tunable filter (AOTF) is used as a selective element. However, the quantitative estimation of AOTF applicability in such medical diagnostic systems is necessary. This estimation can be realized only using spectral and spatial resolving powers. In order to define them, the corresponding criteria must be formulated. The expressions for determination of the spectral resolving power are also discussed. The image digitization principles which are necessary to determine the amount of information contained in the image, are considered. It has been shown that the diffraction principle of digitization is corresponded to Raileigh criterion which can be applied in the limited cases. It is shown that the optimal digitization principle is statistical one, on the basis of which the information criteria for both kinds of resolving power are formulated. The formulations of these criteria proposed by the authors, are listed. The experimental device for spectral resolving power measurements according to the proposed criterion, is also described. The functional circuit and operation of the device are discussed. The proposed criteria take into consideration not only number of gray scale levels which must be recognized in each resolved element (spatial or spectral) but also the noise accompanying the transmitted signal.

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Kirill Zaitchenko and Boris Gurevich "Efficiency increasing of medical diagnostic systems which use multispectral processing method", Proc. SPIE 12146, Clinical Biophotonics II, 121460E (24 May 2022); https://doi.org/10.1117/12.2624445

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