RESEARCH PROGRESS OF CROSS CORRELATION ALGORITHMS IN PARTICLE IMAGE VELOCIMETRY
Yongxin Yang · Lixue jinzhan · 2007
Cross correlation algorithms in particle image velocimetry(PIV)are used to get the full field velocity information of the flow field from the two PIV images.Such an algorithm can be implemented in the following stages:image pre-processing,area discretization,block matching,searching programs setting, image deformation predicting and data post-processing,which are detailed in this paper with related researches during the recent years being reviewed.The spatial resolution and the efficiency of the different algorithms are discussed and compared with each other.