Title:
IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/019973
Kind Code:
A1
Abstract:
This imaging device comprises a plurality of pixels, a first and a second frame memory, an image processing circuit, and a light source for emitting an infrared ray. The first frame memory temporarily stores a first digital signal that corresponds to a first analog signal read out from the pixels. The second frame memory temporarily stores a second digital signal that corresponds to the electric charge accumulated in the pixels during a first exposure period following a read-out period pertaining to the first analog signal. The image processing circuit outputs a first difference between a third digital signal that corresponds to the electric charge accumulated in the pixels during the first exposure period and a second exposure period immediately following the first exposure period and the second digital signal, and a difference between the second digital signal and the first digital signal. At least one of the first and the second exposure periods includes a period in which the light source is turned on.
Inventors:
MIYAKE YASUO
SHISHIDO SANSHIRO
SHISHIDO SANSHIRO
Application Number:
PCT/JP2020/024749
Publication Date:
February 04, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04N5/363; H04N5/374; H04N5/378
Foreign References:
| JP2018013422A | 2018-01-25 | |||
| JP2007281556A | 2007-10-25 | |||
| JP2012060591A | 2012-03-22 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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