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Multi-Prame MQD-PIV  

Suh, Yong-Kweon (School of Mechanical and Industrial System Engineering, Dong-A University)
Publication Information
Journal of Mechanical Science and Technology / v.17, no.10, 2003 , pp. 1552-1562 More about this Journal
Abstract
In this paper, we propose a new PIV methodology for obtaining a velocity field from a sequence of multiple image data based on a least-square principle (also known as MQD; minimum quadratic difference) for the grey level difference between two neighboring frames of image data. We investigated both the accuracy of the result and the time consumption in the computation. It turns out that the proposed method is not only accurate but fast compared with the conventional correlation PIV techniques. Our method is applied to the spin-up flows and the results show that the method can be a good substitution for the conventional algorithms employed in the existing commercial codes.
Keywords
MQD (Minimum Quadratic Difference) PIV; Least-Square Principle; Multi-Frame PIV; Cross-Correlation; Spin-Up Flow;
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Times Cited By KSCI : 1  (Citation Analysis)
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