| THE 3-D TURBULENT PTV BY USING TWO-MEDIA PHOTOGRAMMETRY |
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| 引用本文： | Suo Jin, Zhang Hong-min, Wu Wen-zhou (Taiyuan University of Technology,Taiyuan,Shanxi,030024,P. R. China). THE 3-D TURBULENT PTV BY USING TWO-MEDIA PHOTOGRAMMETRY[J]. 水动力学研究与进展(B辑), 1994, 0(4) |
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| 作者姓名： | Suo Jin Zhang Hong-min Wu Wen-zhou (Taiyuan University of Technology Taiyuan Shanxi 030024 P. R. China) |
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| 作者单位： | Taiyuan University of Technology，Taiyuan，Shanxi，030024，P. R. China |
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| 摘 要： | ＴＨＥ３－ＤＴＵＲＢＵＬＥＮＴＰＴＶＢＹＵＳＩＮＧＴＷＯ－ＭＥＤＩＡＰＨＯＴＯＧＲＡＭＭＥＴＲＹＳｕｏＪｉｎ；ＺｈａｎｇＨｏｎｇ－ｍｉｎ；ＷｕＷｅｎ－ｚｈｏｕ（ＴａｉｙｕａｎＵｎｉｖｅｒｓｉｔｙｏｆＴｅｃｈｎｏｌｏｇｙ，Ｔａｉｙｕａｎ，Ｓｈａｎｘｉ，...
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THE 3-D TURBULENT PTV BY USING TWO-MEDIA PHOTOGRAMMETRY |
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| Suo Jin, Zhang Hong-min, Wu Wen-zhou. THE 3-D TURBULENT PTV BY USING TWO-MEDIA PHOTOGRAMMETRY[J]. Journal of Hydrodynamics, 1994, 0(4) |
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| Authors: | Suo Jin Zhang Hong-min Wu Wen-zhou |
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| Abstract: | In this paper a more extensive application of 3-D PTV on visualization and reconstruction of turbulent flows has been developed: (1) the nonlinear Perspective transformation equations on two-media photogrammetry is used to determine the camera parameters and the Position of tracks in water, (2) an optimization algorithm made the resolution of the calibration much higher, (3) the adhesion and intersection between track images have been recognized and separated by using an automated digital image processing program, so the velocity vectors have been increased in a measuring volume, (4) automatically identify the corresponding track image between stereo Pair images that instantaneously taken and calculate the positions of tracks on 3-D space, (5) a succession of velocity profiles in a turbulent flow are measured and reconstructed. |
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| Keywords: | turbulent flow PTV two-media photogrammetry. |
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