Abstract
Two or three cameras are generally used for 3-D PTV. But, it is very difiicult to arrange the cameras at indivudual observation points. In general, such a sysytem is complex. So, we discuss the simple system com-posed of one camera and a mirror in this study. And we then propose a measurement method of the position of particles.
The present method is as belows; At first we set up the theoreticale quations of optical path using the space coordinates system composed of camera, particles and a virtual image of particles in a mirror. We expand it in a series subsequently and correct it in order to adapt an actual condition. Although it has several coefficients and some correction values which are contained in them, we can calculate easily without the oth-er parameters.
