Title:
IMAGING DEVICE AND DISTANCE INFORMATION CALCULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/166572
Kind Code:
A1
Abstract:
An imaging device (1) comprises a light emission unit (4), a pixel unit (100), and a signal processing unit (2) for calculating distance information for a subject. The pixel unit (100) comprises a photoelectric conversion unit (101), a first read-out gate (106a) and second read-out gate (106b), and a plurality of charge accumulation units (102) that include a first charge accumulation unit (102a) and a second charge accumulation unit (102b). The first read-out gate (106a) is activated in a first period and deactivated in a second period. The second read-out gate (106b) is activated in the first period and second period. The signal processing unit (2) calculates the distance information on the basis of differences between the total amount of signal charge accumulated in the plurality of charge accumulation units (102) in the first period and second period, the amount of signal charge accumulated in the second charge accumulation unit (102b) in the first period and second period, and the amount of signal charge accumulated in the first charge accumulation unit (102a) in the first period.
Inventors:
MORI KEIICHI
MATSUO JUNICHI
OTANI MITSUHIKO
OGAWA MAYU
MATSUO JUNICHI
OTANI MITSUHIKO
OGAWA MAYU
Application Number:
PCT/JP2020/005184
Publication Date:
August 20, 2020
Filing Date:
February 10, 2020
Export Citation:
Assignee:
PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD (JP)
International Classes:
G01S7/486; G01C3/06; G01S17/10; G01S17/89; H04N5/369; H04N5/374
Foreign References:
| JP2009041943A | 2009-02-26 | |||
| JP2001264439A | 2001-09-26 | |||
| JP2011179926A | 2011-09-15 | |||
| US20130181119A1 | 2013-07-18 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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