(a) (×500) First frame with marked object. (b) (×500) A consecutive frame after a period of time.
(a) Third type of capillary. (b) Blood extracted from (a). (c) FFT result of (b).
(a) (×100) First type of capillary segmented by a line. (b) Gray distribution along a perpendicular line in (a). (c) Signals in (b) processed by Hanning filter. (d) (×100) Capillary segmented by three lines.
(a) (×100) Velocity measured with short distance. (b) Correlation result of (a), where indicates the cross correlation. (c) (×100) Velocity measured with large distance. (d) Correlation result of (c), where indicates the cross correlation.
Schematic rationale of image rotation.
(a) Result of signal averaging of Fig. 2(c). (b) Result of Hanning filtering of (a).
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