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Patent Searching and Data

Document Type and Number:
Japanese Patent JP6540885
Kind Code:
This color calibration device is a color calibration device, calibrating colors in a captured image of a first imaging device between different imaging devices using a hologram emitting diffracted light at different frequencies corresponding to an observation angle, the color calibration device includes: a diffracted light spectral distribution calculation unit that obtains respective diffracted light spectral distribution of the diffracted light from the hologram; a camera sensitivity function estimation unit that estimates spectral sensitivity of the imaging device from the respective diffracted light spectral distribution of the diffracted light and each captured image of the diffracted light; and a color calibration unit that calibrates difference in color of the first imaging device relative to a second imaging device different from the first imaging device using the estimated spectral sensitivity.

Takashi Okada
Tomohito Masuda
Tetsuro Morimoto
Application Number:
Publication Date:
July 10, 2019
Filing Date:
July 13, 2017
Export Citation:
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Toppan Printing Co., Ltd.
International Classes:
H04N9/04; B42D25/328; G01J3/02; G02B5/32; G03H1/26
Domestic Patent References:
Attorney, Agent or Firm:
Yasushi Matsunuma
Shiro Suzuki
Yuichiro Shimizu
Makiko Otsuki