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Hybrid Algorithm for Analyzing Velocity Fields from Sequence ImagesEasyChair Preprint 7269, version historyVersion | Date | Pages | Version notes |
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1 | December 28, 2021 | 7 | | 2 | January 20, 2022 | 7 | In this study, a hybrid algorithm was developed for analyzing velocity fields from sequence images taken during particle image velocimetry (PIV) process. The algorithm was used cross-correlation method to obtain initial results for optical-flow processing. Optical-flow was applied to obtain refined results and the resolution of the image reached to unit of pixel. The hybrid algorithm was then applied for systematic images generated by in-house code. The results showed that the algorithm could overcome disadvantage of cross-correlation and optical-flow methods, which indicated by high resoultion and high accurate velocity fields. |
Keyphrases: Lamb-Oseen vortex, PIV, cross-correlation algorithm, optical flow |
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