Abstract
A problem concerning the automatic determination of dynamic characteristics of capillary blood flow, which relies on the analysis of video data obtained by a computer capillaroscope, is discussed. The straightening homeomorphic transformation whereby a capillary region is mapped into a rectangular set is proposed. This technique involves the previously developed algorithms intended to compensate a video sequence drift and detect and analyze the major capillary. An algorithm for determining the instantaneous velocity and volume of a blood flow versus the time and coordinates along the capillary is described.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Computer Capillaroscopy http://www.ckb-rzd.ru/php/content.php?id=1621.
Capillaroscope Series Development http://www.aetechnologies.ru/dev/6-details.htm.
Yu. I. Gurfinkel’, N. V. Katse, O. V. Makeeva, and V. M. Mikhailov, “Availability of noninvasive computer capillaroscopy in space medicine and clinical practice,” in Nonlinear Analysis Techniques in Cardiology and Oncology (Mos. Gos. Univ., Moscow, 2010), No. 2, pp. 111–121 [in Russian].
A. G. Arakcheev, Yu. I. Gurfinkel’, and V. G. Pevgov, “Computer capillaroscope for the noninvasive investigations of circulating blood characteristics,” Mosk. Khirurg. Zh., No. 5, 27–30 (2010) [in Russian].
A. K. Jayanthy, N. Sujatha, and R. M. Ramasubba, “Measuring blood flow: techniques and applications-a review,” Int. J. Res. Review Appl. Sci. 6, 203–216 (2011).
Laser Doppler Flowmetry of Blood Microcirculation, Ed. by A. I. Krupatkin and V. V. Sidorov (Meditsina, Moscow, 2005) [in Russian].
A laser Doppler anemometer for measuring blood cell velocities in perpendicular capillary loops http://www.kktechnology.com/ldm.pdf
L.-Ch. Lo, J. Y. Chiang, and Yu.-S. Cai, “Three-dimensional vision-based nail-fold morphological and hemodynamic analysis,” in Proc. 11th IEEE Int. Conf. on Bioinformatics and Bioengineering BIBE-2011, Taichung, Taiwan, 2011 (IEEE, New York, 2011), p. 44–51.
P. A. Chochia, “Preprocessing of video sequences generated by a capillaroscope,” Inf. Protsessy 11(1), 76–85 (2011) [in Russian].
P. A. Chochia, “Detection of capillaries in the images formed by a capillaroscope,” J. of Communications Technology and Electronics, 58, no. 12, pp. 1314–1323.
J. O. Limb and H. A. Murphy, “Measuring the speed of moving objects from television signals,” IEEE Trans. Comm. 23, 474–478 (1975).
P. A. Chochia, “Image transformation methods using a two-scale image model,” in Image Coding and Processing (Nauka, Moscow, 1988), pp. 98–112 [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © P.A. Chochia, 2014, published in Informatsionnye Protsessy, 2014, Vol. 14, No. 1, pp. 79–86.
Rights and permissions
About this article
Cite this article
Chochia, P.A. Analysis of video data formed by the capillaroscope and blood flow dynamics measurements. J. Commun. Technol. Electron. 59, 1524–1529 (2014). https://doi.org/10.1134/S1064226914120031
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1064226914120031