Title :
Blood flow tracking using optical correlation techniques
Author :
Clark, N. ; Giles, M.K. ; Harrison, S.H. ; Hofer, C.P.
Author_Institution :
Dept. of Electr. Eng. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
Abstract :
It has been previously shown that tracking small particle motion can be accomplished by tracking the speckle pattern it produces. The joint transform correlator and the Sandia National Laboratories (SNL) acoustooptic correlator that were used to track speckle motion are described. Results demonstrate that optical correlation is capable of tracking speckle with an accuracy comparable to digital methods. Optical correlation offers potential advantages in speed, size, and power consumption
Keywords :
acousto-optical devices; biomedical equipment; correlators; haemodynamics; acoustooptic correlator; joint transform correlator; optical correlation techniques; particle motion; power consumption; size; speckle motion; speckle pattern; Adaptive optics; Blood flow; Correlators; Kernel; Liquid crystals; Particle tracking; Real time systems; Speckle; Thin film transistors; Valves;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275889
