抄録
It is well-known that the efficiency of capturing velocity vector in 3-D PTV is much lower than in 2-D PTV due to the problems in particles' occlusion, stereo-matching process, as well as the resolution of the optical hardwares. A new method for particle tracking velocimetry by using a color illumination device with only one camera has been proposed in the present paper. The information of color gradation in the depth direction is employed to determine their 3-D coordinates and velocity components. This report describes the performance of the present method, which is examined by measuring the 3-D flow field of a simple rotating flow.
