@inproceedings{04a19c12dc9945e5be39a611c8f8b03f,
title = "Wave front distortion based fluid flow imaging",
abstract = "In this paper, a transparent flow surface reconstruction based on wave front distortion is investigated. A camera lens is used to focus the image formed by the micro-lens array to the camera imaging plane. The irradiance of the captured image is transformed to frequency spectrum and then the x and y spatial components are separated. A rigid spatial translation followed by low pass filtering yields a single frequency component of the image intensity. Index of refraction is estimated from the inverse Fourier transform of the spatial frequency spectrum of the irradiance. The proposed method is evaluated with synthetic data of a randomly generated index of refraction value and used to visualize a fuel injection volumetric data.",
keywords = "Flow visualization, Fourier demodulation, Index of refraction, Light field, Transparent flow, Wavefront reconstruction",
author = "Emishaw Iffa and Wolfgang Heidrich",
year = "2013",
doi = "10.1117/12.2006135",
language = "English",
isbn = "9780819494344",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Proceedings of SPIE-IS and T Electronic Imaging - Image Processing",
note = "Image Processing: Machine Vision Applications VI ; Conference date: 05-02-2013 Through 06-02-2013",
}