Study on high speed parallel algorithm using PC for visualization measurements by micro digital holographic particle tracking velocimetry

Abstract

Micro digital holographic particle tracking velocimetry with highspeed system is constructed by PC grid environment, which is used by Windows XP with AD-POWERs as parallel tool. Two algorithms for high-speed system are evaluated under the same PC grid environment. Both methods are based on the digital hologram algorithm. The first method is a division algorithm based on the time developing for the measurements. The second is a division algorithm based on the spatial reconstruction for the measurement. In case of the former, the performance is achieved for 4.7 times using 5 PC. The utilization of present system is possible to compute the huge hologram images onsite at the experimental facility.