Spectral imaging and display

The color of images reproduced by conventional imaging systems is different from the actual object. We are developing a novel imaging technology based on "multispectral" and "multiprimary colors," not only RGB three-primary colors. The technology enables realistic and faithful reproduction of the color or material appearance of real objects.
 
 

High-resolution multispectral/hyperspectral image estimation from little-observed information

 

Natural Vision –High-fidelity color reproduction based on multispectral & multiprimary imaging technology


 

Hybrid-resolution spectral imaging: efficient acquisition of high-resolution spectral images.

Evaluation of high-fidelity color display.


 

Spectral fluorescent imaging


 

Links & Publications

Multispectral.org 
Nvision.jp 
・ Naoyuki Ohara, Yinqiang Zheng, Imari Sato, Tomoya Nakamura, Masahiro Yamaguchi. Simultaneous linear separation and unmixing of fluorescent and reflective components from a single hyperspectral image, IEEE International Conference on Image Processing, 2016 IEEE International Conference on Image Processing (ICIP), pp. 4344-4348. (2016)
・ Masahiro Yamaguchi. Optics and Computational Methods for Hybrid Resolution Spectral Imaging, 5th International Workshop CCIW 2015, Computational Color Imaging, Proc. 5th International Workshop CCIW 2015, Lecture Notes in Computer Science, Vol. 9016, pp. 23-32. (2015)
・ Masahiro Yamaguchi. High-fidelity Color Reproduction and Multispectral Medical Imaging, Summit on Color in Medical Imaging. (2013)
・ M. Yamaguchi. Multiprimary-Color Displays and Their Evaluation Methods, Information Display, Vol. 27, No. 4, pp. 18-23, May. (2011)
・ M. Yamaguchi, Y. Murakami, Y. Komiya, Y. Kanno, J. Kishimoto, R. Iwama, H. Hashizume, M. Aihara, M. Furukawa, "Video-Telemedicine with Reliable Color Based on Multispectral Technology," Advances in Telemedicine: Technologies, Enabling Factors and Scenarios, Edited by: Georgi Graschew and Theo A. Roelofs, Intech, Mar. (2011)
・ M. Yamaguchi, H. Haneishi, N. Ohyama, "Beyond Red-Green-Blue(RGB): Spectrum-Based Color Imaging Technology," Journal of Imaging Science and Technology, vol. 52, No. 1, 010201-1-15 (Jan/Feb 2008)
・ Masahiro Yamaguchi ; Hideaki Haneishi ; Hiroyuki Fukuda ; Junko Kishimoto ; Hiroshi Kanazawa, et al., "High-fidelity video and still-image communication based on spectral information: natural vision system and its applications", Proc. SPIE 6062, Spectral Imaging: 60620G (2006).
・ M. Yamaguchi, M. Mitsui, Y. Murakami, H. Fukuda, N. Ohyama, and Y. Kubota, "Multispectral color imaging for dermatology: application in inflammatory and immunologic diseases," 13th Color Imag. Conf. (2005) 52-58
・ Masahiro Yamaguchi ; Taishi Teraji ; Kenro Ohsawa ; Toshio Uchiyama ; Hideto Motomura, et al., "Color image reproduction based on multispectral and multiprimary imaging: experimental evaluation", Proc. SPIE 4663, 15 (2001).
・ "Natural Vision: Visual Telecommunication based on Multispectral Technology," Proc. IDW '00, 1115-1118, (2000)
・ http://www-oid.ip.titech.ac.jp/NV/Six-primary-color-Chiba1999.pdfSix-primary color projection display for expanded color gamut reproduction (1999)
・ Masahiro Yamaguchi, "Multiprimary Color Displays," Color Forum Japan '99, 73-79, (1999) [in Japanese].