Zobrazeno 1 - 10
of 24
pro vyhledávání: '"I. A. Egoshin"'
Publikováno v:
Вестник рентгенологии и радиологии, Vol 101, Iss 3, Pp 136-146 (2020)
Objective. Atypical breast cysts are often quite a serious problem in noninvasive ultrasound differential diagnosis. To develop a system for automated analysis of grayscale ultrasound images, which on the principles of mathematical processing would m
Externí odkaz:
https://doaj.org/article/476013a5c26f448393c3d17ab3739527
Publikováno v:
Biomedical Engineering. 57:23-27
Publikováno v:
International Journal of Computer Assisted Radiology and Surgery. 17:219-228
The amount of ultrasound (US) breast examinations continues to grow rapidly because of the wider endorsement of breast cancer screening programs. Cysts are the most commonly diagnosed breast lesions. Atypical breast cysts can be a serious differentia
Publikováno v:
Biomedical Engineering. 54:99-103
An image segmentation technique is proposed. The technique is based on the automated calculation of the sigmoid filter parameters from the characteristics of the brightness distribution function for the image under study. The technique provides effec
Publikováno v:
Radiophysics and Quantum Electronics. 62:685-693
We consider the model of a mixture of probability distributions for background and target samples in the problem of extracting a signal from radiophysical sounding under conditions of a priori nonparametric uncertainty. Based on the study of this mod
Publikováno v:
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
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 reciprocity in the characteristics
Publikováno v:
Russian Electronic Journal of Radiology. 9:107-118
Publikováno v:
International journal of computer assisted radiology and surgery. 17(2)
The amount of ultrasound (US) breast examinations continues to grow rapidly because of the wider endorsement of breast cancer screening programs. Cysts are the most commonly diagnosed breast lesions. Atypical breast cysts can be a serious differentia
Autor:
I. A. Egoshin, A. A. Kolchev
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 15:803-807
This letter considers a new method for sample detection of ionospheric propagation modes at the receiver output of a chirp ionosonde. The method is based on the use of the hazard function. Within the framework of the two-component mixture model, it i
Autor:
V. P. Uryadov, I. A. Egoshin, A. A. Kolchev, V. V. Shumaev, A. G. Chernov, F. I. Vybornov, G.G. Vertogradov, M. S. Sklyarevsky
Publikováno v:
Advances in Space Research. 61:1837-1849
The article presents the results of the observation of a strong magnetic storm and two X-ray flares during the summer solstice in 2015, and their impact on the HF signals characteristics in ionospheric oblique sounding. It was found that the negative