New Algorithms in Particle Tracking Velocimetry
by
Kazuo Ohmi
Osaka Sangyo University, Japan
Coauthors: Li Hang Yu, Shashidhar Ram Joshi

New algorithms for the use in particle tracking velocimetry (PTV) have been implemented and tested using several types of particle image in fluid flows. The new algorithms have been introduced in order to improve not only the performance of the particle tracking itself but also that of the individual particles extraction. As regards the particle tracking, the relaxation algorithm is used with some improvement and refinement from the original form. For the extraction of individual particles, there are four algorithms tested in the present work, among which are included two new algorithms: the modified Moravec operator method and the dynamic threshold binarization method

Date received: February 2, 1999