1 March 1995 Real-time visualization of retinal microcirculation by laser flowgraphy
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Optical Engineering, 34(3), (1995). doi:10.1117/12.195203
Abstract
A new real-time measuring system is developed to visualize the blood flow map of the human retina using dynamic laser speckle effects and a hardware logic circuit. The retina is illuminated with a diode laser spot through a retinal camera, and the speckle field at the image plane of the spot is scanned by an area sensor. The output signal is analog-to-digital (A/D) converted and the blur rate of the intensity at each pixel point is evaluated through a hardware logic circuit specially developed for this system. The results are displayed in 2-D color maps successively at a rate of 16 frames/s, which allows the real-time observation of retinal blood flow.
Naoki Konishi, Hitoshi Fujii, "Real-time visualization of retinal microcirculation by laser flowgraphy," Optical Engineering 34(3), (1 March 1995). http://dx.doi.org/10.1117/12.195203
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KEYWORDS
Blood circulation

Visualization

Retina

Speckle

Sensors

Logic

Computing systems

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