US 10,948,288 B2Granted

Image pickup system with overlap and non-overlap exposure period

AssigneeCanon Kabushiki Kaisha

InventorsYasushi Iwakura, Tomoya Onishi

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Abstract

At least one image pickup system that acquires distance information and prevents missing, or loss of, information while taking countermeasures against flicker, includes a first image pickup apparatus, a second image pickup apparatus, and a signal processing unit configured to process signals acquired from the first image pickup apparatus and the second image pickup apparatus. An exposure period of the first image pickup apparatus and an exposure period of the second image pickup apparatus are repeated a plurality of times in one frame. The exposure period of the first image pickup apparatus is overlapped with a non-exposure period of the second image pickup apparatus, and a non-exposure period of the first image pickup apparatus is overlapped with the exposure period of the second image pickup apparatus.

Claims13

Dependent claims

An image pickup system, comprising:

a first image pickup apparatus;
a second image pickup apparatus;
and
a signal processing unit configured to process signals acquired from the first image pickup apparatus and the second image pickup apparatus, wherein
an exposure period of the first image pickup apparatus is repeated a plurality of times for each pixel row in the one frame,
an exposure period of the second image pickup apparatus is repeated a plurality of times for each pixel row in the one frame,
the exposure period of the first image pickup apparatus is overlapped with a non-exposure period of the second image pickup apparatus, and a non-exposure period of the first image pickup apparatus is overlapped with the exposure period of the second image pickup apparatus, and
the signal processing unit acquires information of a distance to a subject, from the signals acquired from the first image pickup apparatus and the second image pickup apparatus.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/727,377Filed 6 Oct 2017
Priority: JP JP2016-20316715 Oct 2016
Published: US 2018/0106613 A119 Apr 2018
Granted: 16 Mar 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H04N 13/239
Using stereoscopic image cameras: using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular…
B60R 21/0132
Including means for detecting collisions, impending collisions or roll-over: responsive to vehicle motion parameters , e.g. to vehicle…
G01C 3/14
Using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument: with binocular…
G01C 11/02
Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying: picture taking arrangements specially adapted for photogrammetry…