Title:
撮像装置
Document Type and Number:
Japanese Patent JP6767331
Kind Code:
B2
Abstract:
To provide an imaging apparatus that has good reproducibility even at such a brightness that the signal level of an imaging device is saturated.SOLUTION: The imaging apparatus comprises: an imaging device 1 having a filter separating light into visible light and near infrared light; an exposure control part 103 that sets first and second exposure conditions and controls an imaging part; a signal ratio detection part 102 that detects the ratio of the exposure times of the first and second exposure conditions; first and second visible/near infrared demosaicing parts 3A and 3B that generate visible light and near infrared light under the first and second exposure conditions; a near infrared demosaicing part 4 that generates near infrared light under the first exposure condition; an amplification part 8 that amplifies a signal of the second visible/near infrared demosaicing part; a saturation region detection part 100 that detects saturation of the first visible/near infrared demosaicing part; a selection part 101 that selects the signal of the amplification part when saturated, and the signal of the first visible/near infrared demosaicing part when not saturated; and a subtraction part 10 that subtracts the signal of the near infrared demosaicing part from the signal of the selection part.SELECTED DRAWING: Figure 1
Inventors:
Kazuhiko Takemura
Akihito Nishizawa
Daisuke Yoshida
Akihito Nishizawa
Daisuke Yoshida
Application Number:
JP2017183586A
Publication Date:
October 14, 2020
Filing Date:
September 25, 2017
Export Citation:
Assignee:
Hitachi Industrial Control Solutions Co., Ltd.
International Classes:
H04N5/235; G03B11/00; G03B17/02; H04N5/232; H04N9/07
Domestic Patent References:
| JP2008219140A | ||||
| JP2002223355A | ||||
| JP2008205691A | ||||
| JP2017046204A | ||||
| JP2008289000A | ||||
| JP2015053578A | ||||
| JP2008099039A |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office