US Patent No. 10,992,867

IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF AND STORAGE MEDIUM


Patent No. 10,992,867
Issue Date April 27, 2021
Title Image Capturing Apparatus And Control Method Thereof And Storage Medium
Inventorship Tomomi Uesugi, Kawasaki (JP)
Koichi Washisu, Tokyo (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 10,992,867

1. An image capturing apparatus, comprising:an image capturing device configured to capture a subject image;
a period detection circuit configured to detect a period of a focus variation of the subject image formed on an image capturing surface of the image capturing device with a lens;
a first detection device configured to detect a first translation component, the first translation component being a component in a direction along an optical axis of shake of the image capturing apparatus;
a second detection device configured to detect a rotation component of the shake of the image capturing apparatus; and
at least one processor or circuit configured to function as:
a first extraction unit configured to extract a component of a predetermined frequency band from the first translation component based on the period of the focus variation;
a second extraction unit configured to extract the component of the predetermined frequency band from the rotation component based on the period of the focus variation;
a obtaining unit configured to compare a signal extracted by the first extraction unit with a signal extracted by the second extraction unit to obtain a rotation radius of the shake of the image capturing apparatus; and
a translation obtaining unit configured to obtain a second translation component using the signal from the second detection device and the rotation radius, the second translation component being a component in the direction along the optical axis of the shake of the image capturing apparatus.