We have designed a special purpose computer system for visualizing fluid flow using digital holographic particle tracking velocimetry (DHPTV). This computer contains an Field Programmble Gate Array (FPGA) chip in which a pipeline for calculating the intensity of an object from a hologram by fast Fourier transform is installed. This system can produce 100 reconstructed images from a 1024×1024-grid hologram in 3.3 sec. It is expected that this system will contribute to fluid flow analysis.
© 2008 Optical Society of America
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