Special purpose computer system with highly parallel pipelines for flow visualization using holography technology Original Research Article

We have designed a PC cluster system with special purpose computer boards for visualization of fluid flow using digital holographic particle tracking velocimetry (DHPTV). In this board, there is a Field Programmable Gate Array (FPGA) chip in which is installed a pipeline for calculating the intensity of an object from a hologram by fast Fourier transform (FFT). This cluster system can create 1024 reconstructed images from a image-grid hologram in 0.77 s. It is expected that this system will contribute to the analysis of fluid flow using DHPTV.