Prof. Motoharu Fujigaki Profile

Prof. Motoharu Fujigaki

Professor at Univ of Fukui

SPIE Involvement:

Conference Program Committee | Author

Publications (39)

Proceedings Article | 20 September 2023 Paper

Reduction of influence caused by mirror tilting in phase measuring deflectometry

W. Jiang, M. Fujigaki

Proceedings Volume 12607, 126070B (2023) https://doi.org/10.1117/12.3005533

KEYWORDS: Mirrors, Mirror surfaces, Deflectometry, Cameras, Phase measurement, Specular reflections, Photography, Intelligence systems, Fringe analysis, Reflection

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Proceedings Article | 27 October 2021 Paper

Fringe projection method for 3D shape measurement using linear LED device and cylindrical lens array

Motoharu Fujigaki, Takuya Hara

Proceedings Volume 11927, 119270I (2021) https://doi.org/10.1117/12.2616265

KEYWORDS: 3D metrology, Light emitting diodes, Fringe analysis, Light sources, Ronchi rulings, Projection systems, Projection devices, Phase shifts, Measurement devices, Photography

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Proceedings Article | 27 October 2021 Paper

Out-of-plane displacement measurement using laser parallel fringes generated in camera with diffraction grating

Wei Jiang, Takuya Hara, Motoharu Fujigaki

Proceedings Volume 11927, 119270F (2021) https://doi.org/10.1117/12.2616262

KEYWORDS: Cameras, Diffraction gratings, Phase measurement, Photography, Solids, Metals, Laser sources, Fringe analysis, Computer generated holography, Bridges

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Proceedings Article | 16 October 2019 Paper

Real time three-dimensional shape measurement with phase-to-height lookup table

Wenbo Guo, Zhoujie Wu, Qican Zhang, Motoharu Fujigaki

Proceedings Volume 11205, 112052F (2019) https://doi.org/10.1117/12.2541795

KEYWORDS: 3D metrology, Composites, Phase shifts, Cameras, Time metrology, Phase measurement, Projection systems, Image resolution, Calibration, Imaging systems

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SPIE Journal Paper | 20 November 2018 Open Access

Interferometric trigger method with dual piezoelectric transducers for digital holographic interferometry

Motoharu Fujigaki, Hiroki Minamino, Yorinobu Murata

OE, Vol. 57, Issue 11, 114105, (November 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.11.114105

KEYWORDS: Digital holography, Phase shifts, Ferroelectric materials, Interferometry, Optical sensors, Mirrors, Head, 3D image reconstruction, Holographic interferometry, Holograms

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Proceedings Article | 4 March 2015 Paper

Evaluation of expansion algorithm of measurement range suited for 3D shape measurement using two pitches of projected grating with light source-stepping method

Toshimasa Sakaguchi, Motoharu Fujigaki, Yorinobu Murata

Proceedings Volume 9302, 930228 (2015) https://doi.org/10.1117/12.2084907

KEYWORDS: 3D metrology, Light sources, Projection systems, Light emitting diodes, Phase shifts, Cameras, Phase shifting, Measurement devices, Diffraction gratings, Photography

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Proceedings Article | 18 August 2014 Paper

Small pitch fringe projection method with multiple linear fiber arrays for 3D shape measurement

Takumi Hayashi, Motoharu Fujigaki, Yorinobu Murata

Proceedings Volume 9204, 92040I (2014) https://doi.org/10.1117/12.2064922

KEYWORDS: 3D metrology, Light sources, Phase shifts, Calibration, Light emitting diodes, Cameras, Optical fibers, Head, Diffraction gratings, Inspection

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Proceedings Article | 22 June 2013 Paper

Characteristic evaluation of linear LED grating projector for high-speed shape measurement

Motoharu Fujigaki, Tsutomu Yokoyama, Yohei Oura, Toshimasa Sakaguchi, Daisuke Asai, Yorinobu Murata

Proceedings Volume 8769, 87691J (2013) https://doi.org/10.1117/12.2021246

KEYWORDS: Light emitting diodes, Projection systems, Light sources, Phase shifts, Ronchi rulings, Diffraction gratings, Shape analysis, Phase shifting, 3D metrology, Digital Light Processing

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Proceedings Article | 13 September 2012 Paper

Calibration method using sampling moire method for phase-shifting digital holography with multiple imaging devices

Motoharu Fujigaki, Ryosuke Goto, Yorinobu Murata

Proceedings Volume 8494, 849408 (2012) https://doi.org/10.1117/12.930744

KEYWORDS: Imaging devices, Digital holography, Moire patterns, Calibration, Phase shifts, Optical sensors, Holograms, 3D image reconstruction, Image sensors, Light sources

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Proceedings Article | 13 September 2012 Paper

Dynamic displacement distribution measurement of deforming structure using sampling moire camera

Takuya Hara, Motoharu Fujigaki, Yorinobu Murata

Proceedings Volume 8494, 84940C (2012) https://doi.org/10.1117/12.924048

KEYWORDS: Moire patterns, Cameras, Bridges, Image analysis, Field programmable gate arrays, Fringe analysis, Image processing, Phase shifts, CMOS sensors, Interfaces

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SPIE Journal Paper | 1 October 2011

Dynamic shape and strain measurements of rotating tire using a sampling moiré method

Motoharu Fujigaki, Akihiro Masaya, Kosuke Shimo, Yoshiharu Morimoto

OE, Vol. 50, Issue 10, 101506, (October 2011) https://doi.org/10.1117/12.10.1117/1.3579525

KEYWORDS: Cameras, CCD cameras, Fringe analysis, Phase shifts, Shape analysis, 3D metrology, Optical engineering, Image processing, Phase measurement, 3D image processing

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Proceedings Article | 15 April 2010 Paper

Accuracy improvement of shape measurement using whole-space tabulation method

M. Fujigaki, A. Masaya, R. Murakami, Y. Morimoto

Proceedings Volume 7522, 75220G (2010) https://doi.org/10.1117/12.854722

KEYWORDS: Calibration, Phase shifts, LCDs, Error analysis, 3D image processing, Projection systems, Phase shifting, Distortion, CCD cameras, Imaging devices

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SPIE Journal Paper | 1 October 2009

Single-shot three-dimensional shape measurement method using a digital micromirror device camera by fringe projection

Shien Ri, Motoharu Fujigaki, Yoshiharu Morimoto

OE, Vol. 48, Issue 10, 103605, (October 2009) https://doi.org/10.1117/12.10.1117/1.3250197

KEYWORDS: Digital micromirror devices, Cameras, Calibration, Charge-coupled devices, Mirrors, CCD cameras, Phase shifts, 3D image processing, 3D metrology, LCDs

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Proceedings Article | 29 August 2008 Paper

Development of real-time shape measurement system using whole-space tabulation method

Motoharu Fujigaki, Akihiro Takagishi, Toru Matui, Yoshiharu Morimoto

Proceedings Volume 7066, 706606 (2008) https://doi.org/10.1117/12.795300

KEYWORDS: Calibration, Phase shifts, CCD cameras, Distortion, LCDs, Image processing, Projection systems, Cameras, Radon, Phase shifting

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Proceedings Article | 11 August 2008 Paper

Strain distribution measurement by digital holographic interferometry using three spherical waves

Motoharu Fujigaki, Kohhei Shiotani, Ryosuke Kido, Yoshiharu Morimoto

Proceedings Volume 7063, 70630G (2008) https://doi.org/10.1117/12.798316

KEYWORDS: Spherical lenses, Light sources, Digital holography, Calibration, Phase shifts, Holographic interferometry, Fourier transforms, Holograms, Fringe analysis, Light

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SPIE Journal Paper | 1 February 2007

Subnanometer displacement measurement by averaging of phase difference in windowed digital holographic interferometry

Yoshiharu Morimoto, Matui Toru, Motoharu Fujigaki, Norikazu Kawagishi

OE, Vol. 46, Issue 02, 025603, (February 2007) https://doi.org/10.1117/12.10.1117/1.2538709

KEYWORDS: Holograms, Holographic interferometry, Digital holography, 3D image reconstruction, Speckle, Phase shifts, Optical engineering, Error analysis, Charge-coupled devices, Holography

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Proceedings Article | 6 December 2005 Paper

Omnidirectional shape measurement using reliability evaluation value in Fourier transform

Toru Matui, Shien Ri, Motoharu Fujigaki, Yoshiharu Morimoto

Proceedings Volume 6049, 60490F (2005) https://doi.org/10.1117/12.648709

KEYWORDS: Reliability, Cameras, Fourier transforms, Projection systems, CCD cameras, LCDs, Phase shifts, 3D image processing, Fringe analysis, 3D metrology

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Proceedings Article | 6 December 2005 Paper

Effect of weight in averaging of phases on accuracy in windowed digital holographic interferometry for pico-meter displacement measurement

Yoshiharu Morimoto, Toru Matui, Motoharu Fujigaki, Norikazu Kawagishi

Proceedings Volume 6049, 60490D (2005) https://doi.org/10.1117/12.648696

KEYWORDS: Holograms, Holographic interferometry, Digital holography, Speckle, Phase shifts, 3D image reconstruction, Charge-coupled devices, Error analysis, Holography, Photography

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Proceedings Article | 6 December 2005 Paper

Development of DMD reflection-type CCD camera for phase analysis and shape measurement

Shien Ri, Yasuhiro Matsunaga, Motoharu Fujigaki, Toru Matui, Yoshiharu Morimoto

Proceedings Volume 6049, 60490I (2005) https://doi.org/10.1117/12.647938

KEYWORDS: Digital micromirror devices, Cameras, Charge-coupled devices, Mirrors, CCD cameras, Phase shifts, Moire patterns, Modulation transfer functions, Shape analysis, Camera shutters

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SPIE Journal Paper | 1 August 2005

Phase reliability evaluation in phase-shifting method using Fourier transform for shape measurement

Shien Ri, Motoharu Fujigaki, Yoshiharu Morimoto

OE, Vol. 44, Issue 08, 083601, (August 2005) https://doi.org/10.1117/12.10.1117/1.2030907

KEYWORDS: Reliability, CCD cameras, Fourier transforms, Projection systems, Phase shifts, Fringe analysis, Cameras, Optical engineering, LCDs, Shape analysis

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Proceedings Article | 12 April 2005 Paper

Improvement of accuracy of shape measurement using DMD reflection-type CCD camera

Motoharu Fujigaki, Yoshiharu Morimoto, Shien Ri

Proceedings Volume 5852, (2005) https://doi.org/10.1117/12.621663

KEYWORDS: Digital micromirror devices, Phase shifts, CCD cameras, Cameras, Charge-coupled devices, Mirrors, Micromirrors, Camera shutters, Moire patterns, Systems engineering

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Proceedings Article | 12 April 2005 Paper

Shape measurement by unwrapping method using aliasing of Fourier spectrum

Yoshiharu Morimoto, Motoharu Fujigaki, Toshio Toyotake

Proceedings Volume 5852, (2005) https://doi.org/10.1117/12.621457

KEYWORDS: Phase shifts, Phase shift keying, Systems engineering, Fringe analysis, Switching, Experimental mechanics, Cameras, Algorithm development, Shape analysis, Fourier transforms

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Proceedings Article | 17 August 2004 Paper

Real-time shape measurement system including CG output

Yoshiharu Morimoto, Motoharu Fujigaki, Rodolphe Saugier

Proceedings Volume 5458, (2004) https://doi.org/10.1117/12.546268

KEYWORDS: Phase shifts, Shape analysis, Moire patterns, CCD cameras, Fringe analysis, Cameras, Phase shifting, Cell phones, Projection systems, Interferometry

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Proceedings Article | 30 September 2003 Paper

Deformation measurement by digital holographic interferometry

Isao Takahashi, Takanori Nomura, Yoshiharu Morimoto, Satoru Yoneyama, Motoharu Fujigaki

Proceedings Volume 5264, (2003) https://doi.org/10.1117/12.515005

KEYWORDS: Digital holography, Phase shifts, Holographic interferometry, Semiconductor lasers, Holograms, Holography, Near field diffraction, Denoising, Charge-coupled devices, 3D image reconstruction

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SPIE Journal Paper | 1 May 2003

Absolute phase analysis method for three-dimensional surface profilometry using frequency-modulated grating

Yasuyuki Ikeda, Satoru Yoneyama, Motoharu Fujigaki, Yoshiharu Morimoto

OE, Vol. 42, Issue 05, (May 2003) https://doi.org/10.1117/12.10.1117/1.1566780

KEYWORDS: Projection systems, CCD cameras, Error analysis, Optical engineering, Calibration, LCDs, Cameras, Modulation, Phase shift keying, Inspection

Proceedings Article | 17 March 2003 Paper

Relationship between leaf temperature and photosynthetic ratio of cherry tree

Atsushi Nakashima, Yasushi Ogura, Motoharu Fujigaki, Hiroki Tanikawa, Masafumi Miwa

Proceedings Volume 4879, (2003) https://doi.org/10.1117/12.462406

KEYWORDS: Temperature metrology, Remote sensing, Diagnostics, Photosynthesis, Absorption, Infrared radiation, Sensing systems, Humidity, Simulation of CCA and DLA aggregates, Cameras

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Proceedings Article | 17 March 2003 Paper

Establishment of man-made forest management system for energy use by using Landsat/TM imagery

Hiroki Tanikawa, Atsushi Nakashima, Motoharu Fujigaki, Masafumi Miwa, Tatemasa Hirata

Proceedings Volume 4879, (2003) https://doi.org/10.1117/12.462401

KEYWORDS: Earth observing sensors, Forestry, Combustion, Satellites, Atmospheric corrections, Satellite imaging, Wind energy, Landsat, Image processing, Air contamination

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Proceedings Article | 14 March 2003 Paper

Independence/cooperative remote control support system

Kazuki Makuni, Masafumi Miwa, Motoharu Fujigaki, Hiroki Tanikawa, Masato Soga, Atsushi Nakashima

Proceedings Volume 4886, (2003) https://doi.org/10.1117/12.462347

KEYWORDS: Photography, Sensors, Control systems, Receivers, Sun, Floods, Ranging, Visibility, Refractive index, Light sources

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Proceedings Article | 14 March 2003 Paper

Hue algorithm for plant healthiness monitoring using multispectral infrared camera system

Motoharu Fujigaki, Masafumi Miwa, Atsushi Nakashima, Masato Soga, Hiroki Tanikawa, Koji Kato

Proceedings Volume 4886, (2003) https://doi.org/10.1117/12.462348

KEYWORDS: Infrared cameras, Optical filters, Imaging systems, Image filtering, Infrared imaging, Infrared radiation, Remote sensing, Satellites, Thermography, Cameras

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SPIE Journal Paper | 1 January 2003

Three-dimensional surface profile measurement of a moving object by a spatial offset phase step method

Satoru Yoneyama, Yoshiharu Morimoto, Motoharu Fujigaki, Yasuyuki Ikeda

OE, Vol. 42, Issue 01, (January 2003) https://doi.org/10.1117/12.10.1117/1.1525279

KEYWORDS: Sensors, Fringe analysis, Image sensors, Inspection, Cameras, 3D image processing, Phase measurement, CCD image sensors, Speckle pattern, Manufacturing

Proceedings Article | 29 May 2002 Paper

Shape and displacement measurement by phase-shifting scanning moire method using digital micromirror device

Motoharu Fujigaki, Yoshiharu Morimoto, Qian Gao

Proceedings Volume 4537, (2002) https://doi.org/10.1117/12.468865

KEYWORDS: Digital micromirror devices, Phase shifts, Moire patterns, Cameras, CCD cameras, Charge-coupled devices, Mirrors, Imaging systems, Micromirrors, Camera shutters

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Proceedings Article | 29 May 2002 Paper

Shape, stress, and strain measurement using phase analysis of grating or fringe patterns

Yoshiharu Morimoto, Motoharu Fujigaki, Satoru Yoneyama

Proceedings Volume 4537, (2002) https://doi.org/10.1117/12.468867

KEYWORDS: Fourier transforms, Wavelet transforms, Shape analysis, Fringe analysis, Wavelets, Phase measurement, Photoelasticity, 3D image processing, Strain analysis, Polarizers

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Proceedings Article | 29 May 2002 Paper

Phase-unwrapping method in real-time shape measurement using composite rectangular grid

K. Iwai, Yoshiharu Morimoto, Motoharu Fujigaki, Satoru Yoneyama

Proceedings Volume 4537, (2002) https://doi.org/10.1117/12.468844

KEYWORDS: Composites, Phase shifts, CCD cameras, Moire patterns, Phase shifting, Video, Imaging systems, Computing systems, 3D metrology, Systems engineering

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Proceedings Article | 25 September 2001 Paper

Development of multispectral infrared camera system for plant health evaluation

Motoharu Fujigaki, Masafumi Miwa, Atsushi Nakashima, Myung Kim, Masato Soga, Hiroki Tanikawa

Proceedings Volume 4548, (2001) https://doi.org/10.1117/12.441398

KEYWORDS: Infrared cameras, Image filtering, Optical filters, Imaging systems, Infrared imaging, Infrared radiation, Multispectral imaging, Remote sensing, Satellites, Cameras

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Proceedings Article | 13 June 2001 Paper

Frequency domain methods in digital photoelasticity

Yoshiharu Morimoto, Takanori Nomura, Motoharu Fujigaki, R. Matsui

Proceedings Volume 4317, (2001) https://doi.org/10.1117/12.429556

KEYWORDS: Photoelasticity, Fringe analysis, Wavelet transforms, Fourier transforms, Phase shifts, Wavelets, Wave plates, 3D image processing, Polarizers, Digital photography

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Proceedings Article | 13 August 1999 Paper

Small displacement analysis of microaccelerometer by integrated phase-shifting method

Motoharu Fujigaki, Yoshiharu Morimoto, Hiroki Toda

Proceedings Volume 3744, (1999) https://doi.org/10.1117/12.357700

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Proceedings Article | 13 August 1999 Paper

Real-time shape measurement by integrated phase-shifting method

Yoshiharu Morimoto, Motoharu Fujigaki, Hiroki Toda

Proceedings Volume 3744, (1999) https://doi.org/10.1117/12.357702

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Proceedings Article | 29 September 1998 Paper

Real-time phase distribution analysis of fringe patterns

Yoshiharu Morimoto, Motoharu Fujigaki

Proceedings Volume 3407, (1998) https://doi.org/10.1117/12.323330

KEYWORDS: Moire patterns, Phase shifts, Fringe analysis, Demodulation, Electroluminescence, Analog electronics, Analytical research, CCD image sensors, Image processing, Shape analysis

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Proceedings Article | 20 March 1997 Paper

Accurate shape measurement for cylindrical object by phase-shifting method using Fourier transform

Motoharu Fujigaki, Yoshiharu Morimoto

Proceedings Volume 2921, (1997) https://doi.org/10.1117/12.269876

KEYWORDS: Phase shifts, Fourier transforms, Cameras, 3D image processing, Projection systems, Shape analysis, Phase shifting, Sensors, Error analysis, CCD cameras

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Showing 5 of 39 publications

Conference Committee Involvement (19)

Dimensional Optical Metrology and Inspection for Practical Applications XIII

24 April 2024 | National Harbor, Maryland, United States