Particle Image Velocimetry Algorithm Based on Block Matching

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.