Color Conversion Method for Multiprimary Display Using Matrix Switching

Ajito, Takeyuki; Ohsawa, Kenro; Obi, Takashi; Yamaguchi, Masahiro; Ohyma, Nagaaki

doi:10.1007/s10043-001-0191-5

Cited by 49 publications

(36 citation statements)

References 11 publications

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“…In the implementation of the proposed method, CIE 1964 color matching functions are used as the equality constraints and the GRG method is used as the nonlinear optimization algorithm. For comparison, we also simulate seven-primary reproduction with another color conversion method, matrix switching conversion method, 17 and threeprimary reproduction, which only uses B, G and R primaries shown in Fig. 2, with 3ϫ3 color conversion matrix.…”

Section: Simulation Resultsmentioning

confidence: 99%

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

Murakami

Ishii

Obi

et al. 2004

J. Electron. Imaging

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In the conventional color reproduction based on the colorimetric match for a standard observer, color mismatch can be perceived if the color matching functions of the observer deviate from those of the standard observer; this phenomenon is known as observer metamerism. Recently, multi-primary display, using more than three-primary colors, has attracted attention as a color reproduction media because of its expanded gamut and its possibility to reduce the color mismatch caused by observer metamerism. In this paper, a new color conversion method for multi-primary display that reduces the observer metamerism is proposed. The proposed method gives the multi-dimensional control value of a display device to minimize the spectral approximation error under the constraints of tristimulus match. Reproduced spectrum by a seven-primary display is simulated and evaluated by the color matching functions of Stiles's 20 observers. The results confirmed that the proposed method reduces the color reproduction error caused by observer variability compared to the other seven-primary reproduction and conventional three-primary reproduction. The preliminary visual evaluation results with a seven-primary display using light-emitting diodes are also introduced. © 2004 SPIE and IS&T.

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Section: Simulation Resultsmentioning

confidence: 99%

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

Murakami

Ishii

Obi

et al. 2004

J. Electron. Imaging

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“…One is the colorimetric color reproduction technique and the other is spectral color reproduction. The former relies on the matrix-switching method proposed by Ajito et al 7) and the LIQUID method 8) proposed by Motomura et al These methods affect the reproduction of color if the observer's color matching function does not match that of the standard observer. The latter type of method involves an optimization based on a Lagrange multiplier 9) proposed by Murakami et al Unlike the colorimetric color reproduction method, the latter method makes it possible to reproduce colors by considering the individual differences of the color matching function.…”

Section: Related Workmentioning

confidence: 99%

[Paper] Color Reproduction of a Multiband 3D Projector

Tomizawa

Manabe

Yata

2017

MTA

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Stereoscopic video technology, which enables three-dimensional (3D) images to be displayed, has been developing rapidly. However, existing devices are unable to achieve accurate color reproduction. This paper proposes a method to accurately reproduce the colors displayed by a multiband 3D projector. Previously, we proposed a stereoscopic display system with an expanded color gamut. However, we only confirmed the expansion of the color gamut of the proposed system and were unable to display stereoscopic images with accurate colors. We now propose an accurate color and spectral reproduction method for a stereoscopic image display system for which we developed an expanded color gamut by means of the covariance matrix adaptation evolution strategy (CMA-ES). The system design for optimizing the color reproduction of the multiband 3D projector is described. An experimental evaluation of the color reproducibility showed the performance of the proposed method to be superior to that of an existing method.

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“…(3) is used as the display model under the conditions given by Eqs. (5) and (6). Display gamut boundary in XYZ color space can be calculated according to the methods given in Ref.…”

Section: Maximum Color Gamut Requirementmentioning

confidence: 99%

“…The color conversion issues of multi-primary displays have been studied [6][7][8][9]. There are red, green, and blue signals for conventional images.…”

Section: Introductionmentioning

confidence: 99%

Design of relative primary luminances for four-primary displays

Wen¹

2005

Displays

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Color Conversion Method for Multiprimary Display Using Matrix Switching

Cited by 49 publications

References 11 publications

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

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

[Paper] Color Reproduction of a Multiband 3D Projector

Design of relative primary luminances for four-primary displays

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