Abstract
Integral photography (IP) is a technique to record a three-dimensional image on a photographic plate with a single-camera. In this paper, digital IP is applied to three-dimensional PTV. By using digital IP, three-dimensional positions of tracer particles can be measured easily on a computer from a single captured image. The performance of the present three-dimensional PTV is evaluated in numerical simulation and experiment. In numerical simulation, the measurement accuracy is examined with a digital IP in particle depth position that is measured in a set of reconstructed images. In experiment, flow velocity is measured in a circular tube by using the present PTV based on digital IP.
