Dr. Kohei Yatabe Profile

Dr. Kohei Yatabe

at Waseda Univ

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Author

Publications (3)

Proceedings Article | 14 May 2019 Presentation + Paper

Extracting sound from flow measured by parallel phase-shifting interferometry using spatio-temporal filter

Risako Tanigawa, Kenji Ishikawa, Kohei Yatabe, Yasuhiro Oikawa, Takashi Onuma, Hayato Niwa

Proceedings Volume 10997, 109970R (2019) https://doi.org/10.1117/12.2518852

KEYWORDS: Visualization, Aerodynamics, Linear filtering, Phase interferometry, Bandpass filters, Refractive index, Image filtering, Polarization, Optical filters, Cameras

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Proceedings Article | 16 May 2018 Paper

Seeing the sound we hear: optical technologies for visualizing sound wave

Yasuhiro Oikawa, Kenji Ishikawa, Kohei Yatabe, Takashi Onuma, Hayato Niwa

Proceedings Volume 10666, 106660C (2018) https://doi.org/10.1117/12.2305323

KEYWORDS: Visualization, Geometrical optics, Laser Doppler velocimetry, Transducers, Acoustics, Optical testing, Spherical lenses, Phase interferometry, Cameras, Visual optics

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Proceedings Article | 20 February 2017 Paper

Interferometric imaging of acoustical phenomena using high-speed polarization camera and 4-step parallel phase-shifting technique

K. Ishikawa, K. Yatabe, Y. Ikeda, Y. Oikawa, T. Onuma, H. Niwa, M. Yoshii

Proceedings Volume 10328, 103280I (2017) https://doi.org/10.1117/12.2269940

KEYWORDS: Polarization, High speed cameras, Cameras, Phase shifts, Transducers, Diffraction, Geometrical optics, Metals, Phase interferometry, Imaging systems

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