相関法による三次元ＰＴＶ　（粒子対応付けのアルゴリズム）

山本 富士夫, 田 懐璋, 植村 知正, 近江 和生

doi:10.1299/kikaib.57.3832

相関法による三次元ＰＴＶ　（粒子対応付けのアルゴリズム）

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書誌事項

タイトル別名

Three-Dimensional PTV Based on Binary Cross-Correlation Method. (Algorithm of Particle Identification).
ソウカンホウニヨル 3ジゲン PTV リュウシタイオウズケノアルゴリ

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説明

The purpose of the present study is to propose a new method of particle identification in three-dimensional particle-tracking velocimetry (3D PTV) using binary image data. It is based on the necessary condition for particle identification and the 3D cross-correlation method for evaluating the similarity of particle distribution patterns in two spaces. Computer simulations are carried out to investigate the effects of particle size, search subregions and identification subregions on the performance of particle identification. The method has two key advantages: One is a quick and high efficiency particle identification performance and the other is that the computer memory required for the computation of particle identification is generally smaller compared to the other methods.