Dr. Norimitsu Akiba Profile

Dr. Norimitsu Akiba

at National Research Institute of Police Science

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Author

Publications (8)

Proceedings Article | 13 November 2024 Poster + Paper

Examination of degradation degree of fingerprints for visualizing aged fingerprint using an ultraviolet laser

Norimitsu Akiba, Kazuhito Hibino, Atsushi Nakamura, Takayuki Sota, Hidetoshi Kakuda, Ken'ichi Tsuchiya, Kosuke Tanabe

Proceedings Volume 13205, 132050I (2024) https://doi.org/10.1117/12.3030920

KEYWORDS: Humidity, Fluorescence, Ultraviolet radiation, Visualization, Lamps, Sunlight, Fluorescence intensity, Imaging systems, Tunable lasers, Pulsed laser operation

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Proceedings Article | 28 October 2022 Presentation + Paper

Examination of fingerprint separation methods based on hyperspectral data measured from latent overlapping fingerprints

N. Akiba, A. Nakamura, T. Sota, K. Hibino, H. Kakuda, K. Tsuchiya, K. Tanabe

Proceedings Volume 12275, 122750A (2022) https://doi.org/10.1117/12.2635982

KEYWORDS: Principal component analysis, Hyperspectral imaging, Luminescence, Visible radiation, Imaging systems, Data acquisition, Visualization, Nondestructive evaluation, Fiber lasers, Continuous wave operation

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Proceedings Article | 7 October 2019 Paper

Image enhancement of pre-processed fingerprints using color information and spatial frequency filtering

Hidetoshi Kakuda, Norimitsu Akiba, Kenro Kuroki, Kazuhito Hibino, Kenji Kurosawa, Ken'ichi Tsuchiya, Ryo Yokota, Daisuke Imoto, Manato Hirabayashi, Kosuke Tanabe, Yoshinori Hawai

Proceedings Volume 11166, 111660M (2019) https://doi.org/10.1117/12.2532533

KEYWORDS: Forensic science, Image enhancement, Spatial frequencies, Principal component analysis, Spatial filters, Image processing, Image filtering, Visualization, Fourier transforms

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SPIE Journal Paper | 13 January 2016

Wide-field time-resolved luminescence imaging and spectroscopy to decipher obliterated documents in forensic science

Mototsugu Suzuki, Norimitsu Akiba, Kenji Kurosawa, Kenro Kuroki, Yoshinori Akao, Yoshiyasu Higashikawa

OE, Vol. 55, Issue 01, 014101, (January 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.1.014101

KEYWORDS: Luminescence, Imaging spectroscopy, Spectroscopy, Forensic science, Pulsed laser operation, Time resolved spectroscopy, Optical filters, Cameras, Phosphorescence, Fluorescence spectroscopy

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Proceedings Article | 22 March 2013 Paper

Case studies and further improvements on source camera identification

Kenji Kurosawa, Kenro Kuroki, Ken’ichi Tsuchiya, Naoaki Igarashi, Norimitsu Akiba

Proceedings Volume 8665, 86650C (2013) https://doi.org/10.1117/12.2003311

KEYWORDS: Cameras, Charge-coupled devices, Video, Sensors, CCD cameras, Optical filters, CCD image sensors, Digital cameras, Optical filtering, Image analysis

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Proceedings Article | 5 May 2010 Paper

Radiation-induced failures and degradation of wireless real-time dosimeter under high-dose-rate irradiation

K. Tsuchiya, K. Kuroki, N. Akiba, K. Kurosawa, T. Matsumoto, J. Nishiyama, H. Harano

Proceedings Volume 7665, 76651G (2010) https://doi.org/10.1117/12.849639

KEYWORDS: Gamma radiation, Sensors, Microcontrollers, X-rays, Standards development, Reliability, Solid state electronics, Radiation effects, X-ray detectors, Calibration

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Proceedings Article | 19 July 2002 Paper

CCD fingerprint method for digital still cameras

Naoki Saitoh, Kenji Kurosawa, Kenro Kuroki, Norimitsu Akiba, Zeno Geradts, Jurrien Bijhold

Proceedings Volume 4709, (2002) https://doi.org/10.1117/12.474737

KEYWORDS: Cameras, Image compression, CCD cameras, Charge-coupled devices, Image quality, Digital cameras, Image resolution, Digital imaging, Video, Image processing

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Proceedings Article | 21 February 2001 Paper

Gamma-ray imaging with an image intensifier and a cooled CCD camera

Naoki Saitoh, Kenro Kuroki, Kenji Kurosawa, Norimitsu Akiba

Proceedings Volume 4232, (2001) https://doi.org/10.1117/12.417568

KEYWORDS: Gamma radiation, Distortion, CCD cameras, Image intensifiers, Principal component analysis, Gamma ray imaging, Imaging systems, Radioisotopes, Metals, X-rays

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Showing 5 of 8 publications

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