Influence of individual variations of particle image intensities on high-resolution PIV

Nobach H.

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Influence of individual variations of particle image intensities on high-resolution PIV

机译：粒子图像强度的个体变化对高分辨率PIV的影响

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Individual variations of intensity of tracer particles, e.g., due to out-of-plane displacements between exposures, strongly limit the achievable accuracy of correlation-based PIV processing. The RMS error originated by this effect correlates with the spatial resolution that can be achieved with the processing algorithm making especially high-resolution algorithms like iterative image deformation affected by this error. Both aspects are shown, the gain of resolution by iterative image deformation and the loss of accuracy due to individual variations of particle intensities.

机译：示踪剂颗粒强度的个体变化，例如由于曝光之间的平面外位移，强烈地限制了基于相关性的PIV处理可达到的精度。由该效应引起的RMS误差与处理算法可以实现的空间分辨率相关，该处理算法使特别是高分辨率算法（例如受该误差影响的迭代图像变形）成为可能。都显示了这两个方面，由于图像强度的个体变化，迭代图像变形带来的分辨率提高以及准确性的损失。

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《Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow》 |2011年第4期|共9页
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Nobach H.;
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正文语种 eng
中图分类流体力学;
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1. Influence of individual variations of particle image intensities on high-resolution PIV [J] . Holger Nobach Experiments in Fluids . 2011,第4期

机译：粒子图像强度的个体变化对高分辨率PIV的影响
2. Limitations of accuracy in PIV due to individual variations of particle image intensities [J] . Holger Nobach, Eberhard Bodenschatz Experiments in Fluids . 2009,第1期

机译：由于粒子图像强度的个体变化，PIV的精度受到限制
3. Limitations of accuracy in PIV due to individual variations of particle image intensities [J] . H. Nobach, E. Bodenschatz Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow . 2009,第1期

机译：由于粒子图像强度的个体变化，PIV的精度受到限制
4. High-resolution commercial CMOS image sensors as X-ray imagers and low-intensity particle beam monitors [C] . A. Castoldi, C. Guazzoni, S. Maffessanti, IEEE Nuclear Science Symposium and Medical Imaging Conference . 2014

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5. Experimental Investigation into Single and Two Phase Turbulent Flows through an Elbow and Tee Junction Using Particle Image Velocimetry (PIV) and Refractive Index Matching (RIM) [D] . Bluestein, Andrew M. 2019

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6. Distribution of Paclitaxel Particles After Drug-Coated Balloon Treatment　― Comparison Between Intravascular Ultrasound Images and Electronic High-Resolution Angioscopy ― [O] . Madoka Ihara, Yuhei Nojima, Nobuyuki Koh, 2020

机译：药物涂层球囊处理后紫杉醇颗粒的分布 - 血管内超声图像与电子高分辨率血管镜检查的比较 -
7. Influence of individual variations of particle image intensities on high-resolution PIV [O] . Nobach, H. 2011

机译：粒子图像强度的个体变化对高分辨率pIV的影响
8. Implementation of a Particle Image Velocimetry (PIV) system. An example application of PIV to wake-flows behind objects [R] . Tokuhiro, A. , Hishida, K. , Ohki, Y. 1996

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Influence of individual variations of particle image intensities on high-resolution PIV

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