Nagaaki Ohyama

According to our database, Nagaaki Ohyama authored at least 60 papers between 1986 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

The improvement of ground truth annotation in public datasets for human detection.

Sotheany Nou, Joong Sun Lee, Nagaaki Ohyama, Takashi Obi

Mach. Vis. Appl., May, 2024

2019

Classification of Elastic and Collagen Fibers in H&E Stained Hyperspectral Images.

Lina Septiana, Hiroyuki Suzuki, Masahiro Ishikawa, Takashi Obi, Naoki Kobayashi, Nagaaki Ohyama, Erning Wihardjo, Dini Andiani

Proceedings of the 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2019

2015

A new method for constructing dynamic VPN cooperating with OpenFlow control technology and healthcare PKI.

Joong Sun Lee, Takashi Obi, Hiroyuki Suzuki, Kazushige Fujita, Masuyoshi Yachida, Nagaaki Ohyama

Proceedings of the 17th Asia-Pacific Network Operations and Management Symposium, 2015

2013

A Proposal of Spatio-Temporal Reconstruction Method Based on a Fast Block-Iterative Algorithm.

Tatsuya Kon, Takashi Obi, Hideaki Tashima, Nagaaki Ohyama

IEICE Trans. Inf. Syst., 2013

2012

Hybrid-resolution multispectral imaging based on color filter array: basic principles and computer simulation.

Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 6th European Conference on Colour in Graphics, Imaging, and Vision, 2012

2011

Lossless and lossy coding for multispectral image based on sRGB standard and residual components.

Kazuma Shinoda, Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama

J. Electronic Imaging, 2011

Hybrid Resolution Spectral Imaging by Class-based Regression Method.

Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 19th Color and Imaging Conference, 2011

The Development of a Prototype e-P.O. Box and its Application to Personal Health Information Management System.

Joong Sun Lee, Hiroyuki Suzuki, Naoko Taira, Kouichi Kita, Takashi Obi, Masuyoshi Yachida, Takahiro Yokoyma, Hiroshige Yamamoto, Kazuhisa Uryu, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the HEALTHINF 2011, 2011

2010

Hyperspectral image compression suitable for spectral analysis application.

Kazuma Shinoda, Yukio Kosugi, Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Picture Coding Symposium, 2010

Multispectral image compression for spectral and color reproduction based on lossy to lossless coding.

Kazuma Shinoda, Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Image Processing: Algorithms and Systems VIII, 2010

Empirical analysis of internet identity misuse: case study of south Korean real name system.

Yunsang Oh, Takashi Obi, Joong Sun Lee, Hiroyuki Suzuki, Nagaaki Ohyama

Proceedings of the 6th Workshop on Digital Identity Management, 2010

Color Enhancement of Multispectral Images for Effective Visualization.

Noriaki Hashimoto, Yuri Murakami, Masahiro Yamaguchi, Takashi Obi, Nagaaki Ohyama

Proceedings of the 5th European Conference on Colour in Graphics, 2010

2009

A subjective evaluation of high-chroma color with wide color-gamut display.

Junko Kishimoto, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Color Imaging XIV: Displaying, 2009

2008

Evaluation of tone mapping for multi-band high dynamic range images: (0258).

Junko Kishimoto, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2008

Multispectral image enhancement for H&E stained pathological tissue specimens.

Pinky A. Bautista, Tokiya Abe, Masahiro Yamaguchi, Nagaaki Ohyama, Yukako Yagi

Proceedings of the Medical Imaging 2008: Visualization, 2008

Evaluating Wide Gamut Color Capture of Multispectral Cameras.

Yuri Murakami, Keiko Iwase, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 16th Color and Imaging Conference, 2008

New Method for Reproducing Fluorescent Colors.

Jarkko Mutanen, Jussi Kinnunen, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 4th European Conference on Colour in Graphics, 2008

Comparison of spectral image reconstruction methods using multipoint spectral measurements.

Yuri Murakami, Kunihiko Ietomi, Ayumi Tadano, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 4th European Conference on Colour in Graphics, 2008

Color Correction of Red Blood Cell Area in H&E Stained Images by Using Multispectral Imaging.

Tokiya Abe, Hideaki Haneishi, Pinky A. Bautista, Yuri Murakami, Masahiro Yamaguchi, Nagaaki Ohyama, Yukako Yagi

Proceedings of the 4th European Conference on Colour in Graphics, 2008

2007

Digital staining of pathological images: dye amount correction for improved classification performance.

Pinky A. Bautista, Tokiya Abe, Masahiro Yamaguchi, Yukako Yagi, Nagaaki Ohyama

Proceedings of the Medical Imaging 2007: Computer-Aided Diagnosis, 2007

2006

Color reproducibility of skin lesions in multispectral video: Experimental evaluation.

Masahiro Yamaguchi, Ryo Iwama, Hiroshi Kanazawa, Norihito Fujikawa, Hiroyuki Fukuda, Hideaki Haneishi, Nagaaki Ohyama, Hidefumi Wada, Takeshi Kambara, Michiko Aihara, Yuko Yamakawa, Akinobu Nemoto, Masaki Furukawa, Zenro Ikezawa

Proceedings of the 14th Color and Imaging Conference, 2006

A method for rendering and editing multispectral computer graphics.

Masaru Tsuchida, Hiroyuki Arai, Toshio Uchiyama, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the 3rd European Conference on Colour in Graphics, Imaging, and Vision, 2006

2005

High-fidelity color reproduction based on multi-channel BTF/BRDF acquisition, rendering and display.

Masaru Tsuchida, Yoshiyuki Sakaguchi, Hiroyuki Arai, Masami Nishiko, Norihito Fujikawa, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2005

Color palette with enhanced psychological effect uncovered by multiprimary color display.

Junko Kishimoto, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2005

Spectral-based image-editing system.

Hiroyuki Fukuda, Junko Kishimoto, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2005

Digital staining of pathological tissue specimens using spectral transmittance.

Pinky A. Bautista, Tokiya Abe, Masahiro Yamaguchi, Yukako Yagi, Nagaaki Ohyama

Proceedings of the Medical Imaging 2005: Image Processing, 2005

Multispectral Color Imaging for Dermatology: Application in Inflammatory and Immunologic Diseases.

Masahiro Yamaguchi, Masanori Mitsui, Yuri Murakami, Hiroyuki Fukuda, Nagaaki Ohyama, Yasuo Kubota

Proceedings of the 13th Color and Imaging Conference, 2005

Digital Staining of Pathological Tissue Specimens with PCA-based Feature Extraction and Linear Mapping of Spectral Transmittance.

Pinky A. Bautista, Tokiya Abe, Masahiro Yamaguchi, Yukako Yagi, Nagaaki Ohyama

Proceedings of the 13th Color and Imaging Conference, 2005

Improvements for multispectral image compression for color reproducibility with preservation to spectral accuracy.

Shanshan Yu, Yuri Murakami, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 2005 International Conference on Image Processing, 2005

Development of a 16-band multispectral image archiving system.

Hiroyuki Fukuda, Toshio Uchiyama, Hideaki Haneishi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Color Imaging X: Processing, Hardcopy, and Applications, San Jose, 2005

2004

Color conversion method for multi-primary display for spectral color reproduction.

Yuri Murakami, Jun-ichiro Ishii, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

J. Electronic Imaging, 2004

Multispectral image compression for high-quality color reproduction using JPEG2000.

Ryota Mase, Yohei Kawasaki, Yuri Murakami, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Visual Communications and Image Processing 2004, 2004

IRODORI: a color-rich palette based on natural vision technology.

Junko Kishimoto, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2004

Evaluation of Smoothness in Color Gradation on Multiprimary Display.

Junya Takiue, Shingo Sugino, Yuri Murakami, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Twelfth Color Imaging Conference: Color Science and Engineering Systems, 2004

Concept and Technology of Natural Vision System.

Nagaaki Ohyama

Proceedings of the Twelfth Color Imaging Conference: Color Science and Engineering Systems, 2004

Color Conversion for Multi-primary Displays Using a Spherical Average Method.

Hiroshi Kanazawa, Masanori Mitsui, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the Twelfth Color Imaging Conference: Color Science and Engineering Systems, 2004

A Visual Evaluation of the Image Reproduced by Color Decomposition Based on Spectral Approximation for Multiprimary Display.

Toshio Uchiyama, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the Second European Conference on Colour in Graphics, Imaging, and Vision, 2004

2003

Six-Band HDTV Camera System for Color Reproduction Based on Spectral Information.

Kenro Ohsawa, Hiroyuki Fukuda, Takeyuki Ajito, Yasuhiro Komiya, Hideaki Haneishi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the PICS 2003: The PICS Conference, 2003

A Method for the Unified Representation of Multispectral Images with Different Number of Bands.

Satoshi Nambu, Toshio Uchiyama, Masahiro Yamaguchi, Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the PICS 2003: The PICS Conference, 2003

Natural Vision Image Data File Format for Spectral-Based Color Reproduction.

Hideto Motomura, Kenro Ohsawa, Hideaki Haneishi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the PICS 2003: The PICS Conference, 2003

Spectrum-based color reproduction system for motion picture.

Kenro Ohsawa, Hiroyuki Fukuda, Yasuhiro Komiya, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Color Imaging VIII: Processing, Hardcopy, and Applications, Santa Clara, 2003

2002

A Multiprimary Display: Optimized Control Values for Displaying Tristimulus Values.

Friedhelm König, Kenro Ohsawa, Masahiro Yamaguchi, Nagaaki Ohyama, Bernhard Hill

Proceedings of the PICS 2002: IS&T's PICS Conference, 2002

Development of support systems for pathology using spectral transmittance: the quantification method of stain conditions.

Keiko Fujii, Masahiro Yamaguchi, Nagaaki Ohyama, Kiyoshi Mukai

Proceedings of the Medical Imaging 2002: Image Processing, 2002

A Method for the Evaluation of Color Estimation from Multispectral Data.

Yuri Murakami, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Tenth Color Imaging Conference: Color Science and Engineering Systems, 2002

Backward Model for Multi-Primary Display Using Linear Interpolation on Equi-luminance Plane.

Hideto Motomura, Hideaki Haneishi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Tenth Color Imaging Conference: Color Science and Engineering Systems, 2002

Color image reproduction based on multispectral and multiprimary imaging: experimental evaluation.

Masahiro Yamaguchi, Taishi Teraji, Kenro Ohsawa, Toshio Uchiyama, Hideto Motomura, Yuri Murakami, Nagaaki Ohyama

Proceedings of the Color Imaging: Device-Independent Color, 2002

2001

Multispectral Image Compression for Color Reproduction; Weighted KLT and Adaptive Quantization based on Visual Color Perception.

Yuri Murakami, Hiroyuki Manabe, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 9th Color Imaging Conference: Color Science and Engineering: Systems, 2001

Multispectral image retrieval using vector quantization.

Nagaaki Ohyama, Toshio Uchiyama, Masahiro Yamaguchi, Naoki Mukawa, Hiroshi Kaneko

Proceedings of the 2001 International Conference on Image Processing, 2001

High-fidelity image reproduction using angular distribution of reflected spectral intensity.

Masaru Tsuchida, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Color Imaging: Device-Independent Color, 2001

1999

Pattern-histogram-based temporal change detection using personal chest radiographs.

Yücel Ugurlu, Takashi Obi, Akira Hasegawa, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Medical Imaging 1999: Image Processing, 1999

Detection of Increasing Profusion of Opacities from a Sequence of Personal Chest Radiographs.

Yücel Ugurlu, Keiko Ohkura, Takashi Obi, Akira Hasegawa, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 1999 International Conference on Image Processing, 1999

Hierarchical Image Segmentation Using Adaptive Pattern Sizes.

Keiko Ohkura, Yücel Ugurlu, Hidekazu Nishizawa, Takashi Obi, Akira Hasegawa, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 1999 International Conference on Image Processing, 1999

Natural Color Reproduction System for Telemedicine and Its Application to Digital Camera.

Yasuhiro Komiya, Kenro Ohsawa, Yuri Ohya, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the 1999 International Conference on Image Processing, 1999

1998

Hierarchical clustering method for the segmentation of medical images.

Keiko Ohkura, Hidezaku Nishizawa, Takashi Obi, Masahiro Yamaguchi, Nagaaki Ohyama

Proceedings of the Medical Imaging 1998: Image Processing, 1998

1997

Natural color reproduction in the television system for telemedicime.

Masahiro Yamaguchi, Ryo Iwama, Yuri Ohya, Takashi Obi, Nagaaki Ohyama, Yasuhiro Komiya, Toshiaki Wada

Proceedings of the Medical Imaging 1997: Image Display, 1997

1994

Multiple current dipole estimation using simulated annealing.

Hideaki Haneishi, Nagaaki Ohyama, Kensuke Sekihara, Toshio Honda

IEEE Trans. Biomed. Eng., 1994

1992

Details of simulated annealing algorithm to estimate parameters of multiple current dipoles using biomagnetic data.

Kensuke Sekihara, Hideaki Haneishi, Nagaaki Ohyama

IEEE Trans. Medical Imaging, 1992

1990

3-D blood vessel reconstruction by simulated annealing.

Hideaki Haneishi, Nagaaki Ohyama

Proceedings of the Medical Imaging IV: Image Processing, 1990

1986

One approach to color image processing.

Masuyoshi Yachida, Nagaaki Ohyama, Eric Badiqué, Toshio Honda, Jumpei Tsujiuchi, R. Ono, S. Ikeda

Proceedings of the IEEE International Conference on Acoustics, 1986

Compensation of motion related blur in CCD color endoscope images.

Eric Badiqué, Nagaaki Ohyama, Masuyoshi Yachida, Toshio Honda, Jumpei Tsujiuchi

Proceedings of the IEEE International Conference on Acoustics, 1986