Dr. Akira Ishii Profile

Dr. Akira Ishii

SPIE Involvement:

Author

Proceedings Article | 10 October 2007 Paper

Real-time system for measuring three-dimensional shape of solder bump array by focus using varifocal mirror

Akira Ishii, Haruka Tai, Jun Mitsudo

Proceedings Volume 6716, 671606 (2007) https://doi.org/10.1117/12.754177

KEYWORDS: Mirrors, Field programmable gate arrays, Image processing, Real-time computing, Inspection, Light emitting diodes, CMOS sensors, 3D metrology, Deformable mirrors, Fiber optic illuminators

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Proceedings Article | 18 October 2006 Paper

Measuring shapes of three-dimensional objects by rotary focused-plane sectioning

Akira Ishii, Tatsuhiro Yamagata

Proceedings Volume 6375, 63750A (2006) https://doi.org/10.1117/12.686611

KEYWORDS: 3D image processing, Image sensors, Space robots, Monochromatic aberrations, Panoramic photography, Robotics, Edge detection, Calibration, Lamps, 3D modeling

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Proceedings Article | 6 December 2005 Paper

Shape measurement of solder bumps by shape-from-focus using varifocal mirror

Akira Ishii, Jun Mitsudo

Proceedings Volume 6049, 60490E (2005) https://doi.org/10.1117/12.648791

KEYWORDS: Mirrors, Monochromatic aberrations, Inspection, 3D metrology, Image sensors, Optical inspection, Field programmable gate arrays, 3D image processing, Imaging systems, Beam splitters

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Proceedings Article | 25 October 2004 Paper

Three-dimensional shape sensor based on lateral focused-plane sectioning

Akira Ishii, Jun Mitsudo, Yuka Fujinaka

Proceedings Volume 5602, (2004) https://doi.org/10.1117/12.571320

KEYWORDS: 3D image processing, Sensors, CCD image sensors, Image sensors, Photography, Imaging systems, Image processing, Opto mechatronics, Actuators, Structured light

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Proceedings Article | 23 October 2003 Paper

Three-dimensional imaging based on perfect projection using a varifocal mirror

Akira Ishii

Proceedings Volume 5202, (2003) https://doi.org/10.1117/12.505584

KEYWORDS: Mirrors, Imaging systems, 3D image processing, Projection systems, Image resolution, Stereoscopy, Spherical lenses, Image sensors, 3D modeling, Machine vision

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Proceedings Article | 30 September 2003 Paper

Shape and height measurement of solder bumps using focus measure difference

Akira Ishii, Jun Mitsudo, Shinsuke Mizushima

Proceedings Volume 5264, (2003) https://doi.org/10.1117/12.515014

KEYWORDS: Optical spheres, Inspection, CCD cameras, Optical inspection, Light emitting diodes, Image resolution, Image processing, Statistical analysis, Error analysis, Time metrology

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Proceedings Article | 18 October 2002 Paper

Optical tomography using confocal fan-beam illumination and its application to LCD panel inspection

Akira Ishii, Makoto Shimizu, Yoshitaka Imoto

Proceedings Volume 4902, (2002) https://doi.org/10.1117/12.467626

KEYWORDS: LCDs, Inspection, Confocal microscopy, Glasses, Optical tomography, Particles, CCD image sensors, Stereoscopy, 3D surface sensing, Optical inspection

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Proceedings Article | 18 October 2002 Paper

Constant-magnification focusing using a varifocal mirror and its application to 3D imaging

Akira Ishii, Susumu Sugiyama, Jun-ichi Sakai, Shinichi Hirai, Toshihiko Ochi

Proceedings Volume 4902, (2002) https://doi.org/10.1117/12.467395

KEYWORDS: Mirrors, Imaging systems, Modulation transfer functions, Stereoscopy, 3D image processing, Spherical lenses, Optical inspection, Prototyping, Actuators, Image resolution

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Proceedings Article | 1 February 1991 Paper

Automatic inspection system for full-color printed matter

Shin-Ichi Meguro, Masakatu Nunotani, Katsuyuki Tanimizu, Mutsuo Sano, Akira Ishii

Proceedings Volume 1384, (1991) https://doi.org/10.1117/12.25307

KEYWORDS: Inspection, Defect detection, Image processing, Optical character recognition, Data communications, Printing, Charge-coupled devices, Image sensors, Spatial filters, Gaussian filters

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Proceedings Article | 1 February 1991 Paper

Flexible gray-level vision system based on multiple cell-feature description and generalized Hough transform

Mutsuo Sano, Akira Ishii, Shin-Ichi Meguro

Proceedings Volume 1381, (1991) https://doi.org/10.1117/12.25140

KEYWORDS: Feature extraction, Hough transforms, Machine vision, Visual process modeling, Robots, Computer vision technology, Robot vision, Convolution, Image segmentation, Data compression

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Showing 5 of 10 publications

SPIE Conference Volume | 12 October 2006

Optomechatronic Sensors, Instrumentation, and Computer-Vision Systems

SPIE Conference Volume | 5 December 2005

Optomechatronic Sensors and Instrumentation

Conference Committee Involvement (3)

Optomechatronic Sensors and Instrumentation II

3 October 2006 | Boston, Massachusetts, United States

Optomechatronic Sensors and Instrumentation

5 December 2005 | Sapporo, Japan

Optomechatronic Sensors, Actuators, and Control

25 October 2004 | Philadelphia, Pennsylvania, United States

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