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Download PDFOpen PDF in browserCurrent versionHybrid Algorithm for Analyzing Velocity Fields from Sequence ImagesEasyChair Preprint 7269, version 17 pages•Date: December 28, 2021AbstractIn 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 Download PDFOpen PDF in browserCurrent version |
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