Digital speckle correlation method used to measure blood flow velocity

• Autorzy: Yan H. T. , Zhen Z. Q. , Tang Z. X.
• Języki publikacji: EN

Abstrakty

EN

The digital speckle correlation method (DSCM) used to measure blood flow velocity is here analyzed. The experiment is designed to obtain the dynamic speckle pattern of blood which is shot by CCD. Then the DSCM is used to process the sequential images and the experiment is simulated. The experimental results show that the DSCM can measure blood flow velocity, and have a good agreement with the simulation results.

Słowa kluczowe

EN

images; blood velocity; digital speckle; correlation function

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2009
• Tom: Vol. 39, nr 1
• Strony: 101--107
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Yan H. T.

autor

Zhen Z. Q.

autor

Tang Z. X.

• College of Science, Henan University of Science and Technology, Luoyang, 471003, P.R.China

Bibliografia

• [1] BARBER W.D., EBERHARD J.W., KARR S.G., A new time domain technique for velocity measurements using Doppler ultrasound, IEEE Transactions on Biomedical Engineering 32(3), 1985, pp. 213–229.
• [2] CENSOR D., NEWHOUSE V.L., VONTZ T., ORTEGA H.V., Theory of ultrasound Doppler-spectra velocimetry for arbitrary beamand flow configurations, IEEE Transactions on Biomedical Engineering 35(9), 1988, pp. 740–751.
• [3] HOEKS A.P., ARTS T.G., BRANDS P.J., RENEMAN R.S., Comparison of the performance of the RF cross correlation and Doppler autocorrelation technique to estimate the mean velocity of simulated ultrasound signals, Ultrasound in Medicine and Biology 19(9), 1993, pp. 727–740.
• [4] ANGELSKY O.V., MAKSIMYAK P.P., Holographic studies of the dynamic and structural characteristics of biological objects, Optical Engineering 32(2), 1993, pp. 267–270.
• [5] KASAI C., NAMEKAWA K., KOYANO A., OMOTO R., Real-time two-dimensional blood flow imaging using an autocorrelation technique, IEEE Transactions on Sonics and Ultrasonics SU-32(3), 1985, pp. 458–464.
• [6] CHU T.C., RANSON W.F., SUTTON M.A., PETERS W.H., Applications of digital-image-correlation techniques to experimental mechanics, Experimental Mechanics 25(3), 1985, pp. 232–244.
• [7] BRUCK H.A., MC NEILL S.R., SUTTON M.A., PETERS W.H., Digital image correlation using Newton–Raphson method of partial differential correction [displacement measurement], Experimental Mechanics 29(3), 1989, pp. 261–267.
• [8] PETERS W.H., RANSON W.F., Digital image techniques in experimental stress analysis, Optical Engineering 21(3), 1982, pp. 427–431.
• [9] TAKAI N., IWAI T., USHIZAKA T., ASAKURA T., Zero-crossing study on dynamic properties of speckles, Journal of Optics 11(2), 1980, pp. 93–101.
• [10] UNO K., UOZUMI J., ASAKURA T., Correlation properties of speckles produced by diffractal-illuminated diffusers, Optics Communications 124(1–2), 1996, pp. 16–22.
• [11] SYNNERGREN P., SJODAHL M., A stereoscopic digital speckle photography system for 3D displacement field measurements, Optics and Lasers in Engineering 31(6), 1999, pp. 425–443.