KSME International Journal

, Volume 17, Issue 10, pp 1552–1562 | Cite as

Multi-Frame MQD-PIV



In this paper, we propose a newPIV 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 correlationPIV 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.

Key Words

MQD (Minimum Quadratic Difference)PIV. Least-Square Principle Multi-Frame PIV Cross-Correlation Spin-Up Flow 


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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 2003

Authors and Affiliations

  1. 1.School of Mechanical and Industrial System EngineeringDong-A UniversityBusanKorea

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