The standard images, provided by the particle image velocimetry standard project (JPIV) of the Visualization Society of Japan, are used to evaluate the velocity vector calculation based on a cross-correlation method. The effect of a sub-pixel calculation, a displacement length, an out-of-plane velocity, a number of particles and a particle size are discussed comparing with the correct velocity vectors. The evaluating method for the cross-correlation method and the problems are also discussed.
