Reviews the research status of the Particle image Velocimetry algorithm based on a new block-based matching algorithm of PIV have been proposed.For two key algorithm-to match the zoning and match the criteria for selecting article gives general guidelines to match the zoning

the size of the matching area must be significantly larger than the particle diameter;MAD / MSE matching criteria for alternative traditional inter-related criteria for PIV algorithm.The experiment proved that the use of the MAD and MSE criteria to replace the traditional cross-correlation evaluation criteria to guarantee the estimation accuracy is essentially the same premise

the running time is reduced by more than 50%

operating efficiency more than double;experimental results also clearly proved the correctness of the match the zoning guidelines.