Control apparatus, imaging apparatus, and control method
AssigneeCanon Kabushiki Kaisha
InventorHitoshi Miyazawa
Life of this patent
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Abstract
A control apparatus includes a detector configured to detect a moving amount of an object image on an imaging plane based on shake information acquired from a shake detector and motion vector information acquired from an image signal, a calculator configured to calculate an object angular velocity based on the moving amount of the object image, the motion vector information, and a cycle of acquiring the object image, and a corrector configured to perform an image stabilization based on the object angular velocity.
Claims8
A control apparatus comprising:
- a detector configured to detect a moving amount of an object image on an imaging plane based on (a) shake information acquired from a shake detector and (b) motion vector information acquired from an image signal;
- a calculator configured to calculate an object angular velocity based on (a) the moving amount of the object image, (b) the motion vector information, and (c) a cycle of acquiring the object image;
- and
- a corrector configured to perform an image stabilization based on the object angular velocity,
- wherein the calculator calculates a gain based on (a) vector information in a background area among the motion vector information and (b) a moving amount on the imaging plane based on the shake information, and
- wherein the calculator calculates the object angular velocity using a value acquired by multiplying a focal length by the gain.
An imaging apparatus comprising:
- an image sensor configured to perform a photoelectric conversion for an object image;
- a detector configured to detect a moving amount of an object image on an imaging plane based on (a) shake information acquired from a shake detector and (b) motion vector information acquired from an image signal;
- a calculator configured to calculate an object angular velocity based on (a) the moving amount of the object image, (b) the motion vector information, and (c) a cycle of acquiring the object image;
- and
- a corrector configured to perform an image stabilization based on the object angular velocity,
- wherein the calculator calculates a gain based on (a) vector information in a background area among the motion vector information and (b) a moving amount on the imaging plane based on the shake information, and
- wherein the calculator calculates the object angular velocity using a value acquired by multiplying a focal length by the gain.
A control method comprising the steps of:
- detecting a moving amount of an object image on an imaging plane based on (a) shake information acquired from a shake detector and (b) motion vector information acquired from an image signal;
- calculating an object angular velocity based on (a) the moving amount of the object image, (b) the motion vector information, and (c) a cycle of acquiring the object image;
- and
- correcting an object blur based on the object angular velocity,
- wherein the calculating comprises (1) calculating a gain based on (a) vector information in a background area among the motion vector information and (b) a moving amount on the imaging plane based on the shake information and (2) calculating the object angular velocity using a value acquired by multiplying a focal length by the gain.
Dependencies are inferred from the claim text.