US 11,871,112 B2
Image stabilization apparatus and method and image capturing apparatus
Tomomi Uesugi, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 31, 2022, as Appl. No. 17/588,496.
Claims priority of application No. 2021-017743 (JP), filed on Feb. 5, 2021.
Prior Publication US 2022/0256084 A1, Aug. 11, 2022
Int. Cl. H04N 23/68 (2023.01); G02B 27/64 (2006.01)
CPC H04N 23/683 (2023.01) [G02B 27/646 (2013.01); H04N 23/685 (2023.01)] 17 Claims
OG exemplary drawing
 
1. An image stabilization apparatus comprising at least one processor and/or circuitry which functions as:
a motion vector detector that detects a motion vector from images repeatedly output from an image sensor;
a first calculator that calculates a first image stabilization coefficient to be used for calculating an amount of translational shake based on the motion vector and an angular velocity of shake of an image capturing apparatus;
a second calculator that calculates a second image stabilization coefficient to be used for calculating an amount of translational shake based on acceleration and the angular velocity of shake of the image capturing apparatus;
a determination unit that selects either of the first image stabilization coefficient or the second image stabilization coefficient based on information about accuracy of detection of the motion vector by the motion vector detector; and
a translational shake calculator that calculates an amount of translational shake using the first image stabilization coefficient or the second image stabilization coefficient selected by the determination unit,
wherein, in a case where the information indicates that the accuracy is low, the determination unit selects the second image stabilization coefficient, and select the first image stabilization coefficient otherwise.