False matching in particle tracking velocimetry(PTV)and low-pass feature of particle correlation velocimetry(PCV)can make the processing error improve.However

the two problems can be reduced by application of cell segmentation theory(CST)presented in this paper.Furthermore

the CST processing model is described as:Firstly

the interrogation fields are divided into different local spaces named as cells

and these cells continue to segment into sub-cells according to correlation degree and close degree.Secondly

these sub-cells compete against each other and the final victorious one attends competition in other fields.Thirdly

the velocity vector field is gotten according to the positional alteration of the victorious cell.At last

the standard particle images were tested and the errors were analyzed.The experimental results demonstrate the effectiveness and practicability of the proposed method.