“A stereo nine-band camera for accurate color and spectrum reproduction” by Tsuchida, Kawanishi, Kashino and Yamato

  • ©Masaru Tsuchida, Takahito Kawanishi, Kunio Kashino, and Junji Yamato




    A stereo nine-band camera for accurate color and spectrum reproduction



    In the digital archiving for cultural heritage preservation, in the medical field, and in some industrial fields, high-fidelity color reproduction is very important. Multiband imaging technology is a solution for accurate color reproduction. Although several types of multiband camera systems have been developed, all of them are multi-shot systems and they cannot take images of moving objects. Tsuchida et al. [2010] have developed a one-shot stereo six-band camera system using two commercial digital cameras. This system is very reasonable in terms of cost, but the distance between the cameras causes self occlusion disparity problems when the object has 3D shape. In addition, the number of color channels of camera system should be increased for further improvement of the accuracy of estimated spectral reflectance. In this paper, we propose a stereo nine-band camera consisting of nine monochrome cameras with nine different interference filters. A nine-band image is generated from nine stereo images captured by this system. Estimated spectral reflectance and reproduced color images reproduced in experiments are shown.


    1. Tsuchida, M., et al., 2010. A stereo one-shot multi-band camera system for accurate color reproduction. In proceedings of Siggraph, Poster, ACM.
    2. Tsuchida, M., et al., 2011. Evaluating Color Reproduction Accuracy of Stereo One-shot Six-band Camera System. In proceedings of 19th Color and Imaging Conference (CIC19).
    3. Takita, H., et al., 2003. High-accuracy image registration based on phase-only correlation. IEICE Transaction of Fundamentals, Vol. E86-A, no.8, 1925–1934.
    4. Pratt, W. K., et al., 1976. Spectral estimation techniques for the spectral calibration of a color image scanner. Applied Optics, OSA, 15, 73–75.
    5. Hashimoto, M., 2008. Two-Shot type 6-band still image capturing system using Commercial Digital Camera and Custom Color Filter. In proceedings of Fourth European Conference on Colour in Graphics, Imaging, and Vision (CGIV2008).

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©Masaru Tsuchida, Takahito Kawanishi, Kunio Kashino, and Junji Yamato

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