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Browsing by Author "Kolchev A.A."

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Detection of a Chirp Ionosonde Signal under Conditions of a Priori Non-Parametric Uncertainty

Egoshin I.A.; Kolchev A.A.; Nedopekin A.E. (2020)

© 2020, Springer Science+Business Media, LLC, part of Springer Nature. We consider the model of a mixture of probability distributions for background and target samples in the problem of extracting a signal from radiophysical ...
Nonreciprocity Effect in Quasi-Vertical Sounding of the Ionosphere

Kolchev A.A.; Zykov E.Y.; Shumaev V.V.; Chernov A.G.; Egoshin I.A.; Akchurin A.D. (2021)

The paper considers an automated system for ionosphere sounding by chirp signals. The experimental scheme for quasi-vertical sounding of the ionosphere is described. It has been experimentally shown that there is no ...
Segmentation of Breast Focal Lesions on the Ultrasound Image

Egoshin I.A.; Pasynkov D.V.; Kolchev A.A.; Kliouchkin I.V.; Pasynkova O.O. (2020)

© 2020, Springer Science+Business Media, LLC, part of Springer Nature. An image segmentation technique is proposed. The technique is based on the automated calculation of the sigmoid filter parameters from the characteristics ...
Ultrasound breast cancer screening in dense parenchyma: The value of computer aided detection system for mammography (single-center, prospective, randomized clinical trial)

Pasynkov D.V.; Tukhbatullin M.G.; Egoshin I.A.; Kolchev A.A.; Kliouchkin I.V. (2021)

Purpose. To compare the results of screening ultrasound (US) in women with dense (ACR C-D) breast parenchyma, with no suspicious changes at mammography, with and without considering the CAD results during the examination. ...

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Browsing by Author "Kolchev A.A."

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