Shake amount acquisition apparatus, shake amount acquisition method, image pickup apparatus, and control apparatus for image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasahiro Shibata
Life of this patent
Estimating the term…
Abstract
A shake amount acquisition apparatus includes a first acquisition unit configured to acquire a shake detection result from a shake detection unit that is configured to detect a shake and is provided in a rotation portion driven to rotate with respect to a base, a second acquisition unit configured to acquire a drive velocity of the rotation portion, and a reference value calculation unit configured to calculate a reference value of the shake detection unit based on the shake detection result and the drive velocity.
Claims15
A shake amount acquisition apparatus comprising:
- one or more processors;
- one or more memories including instructions stored thereon that, when executed by the one or more processors, cause the shake amount acquisition apparatus to function as:
- a first acquisition unit configured to acquire a shake detection result from a shake detection unit that is configured to detect a shake and is provided in a rotation portion driven to rotate with respect to a base;
- a second acquisition unit configured to acquire a drive velocity of the rotation portion;
- and
- a reference value calculation unit configured to calculate a reference value of the shake detection unit, the reference value corresponding to an offset component of an output of the shake detection unit in a stable state.
A control apparatus for an image pickup apparatus, the control apparatus comprising:
- a shake amount acquisition apparatus comprising:
- one or more processors;
- one or more memories including instructions stored thereon that, when executed by the one or more processors, cause the shake amount acquisition apparatus to function as:
- a first acquisition unit configured to acquire a shake detection result from a shake detection unit that is configured to detect a shake and is provided in a rotation portion driven to rotate with respect to a base;
- a second acquisition unit configured to acquire a drive velocity of the rotation portion;
- and
- a reference value calculation unit configured to calculate a reference value of the shake detection unit, the reference value corresponding to an offset component of an output of the shake detection unit in a stable state, based on the shake detection result and the drive velocity;
- and
- a communication unit configured to communicate with the image pickup apparatus including the base and the rotation portion including the shake detection unit and an image pickup element configured to capture a subject image formed by an imaging optical system,
- wherein each of the first acquisition unit and the second acquisition unit acquires information indicating the shake detection result and the drive velocity via the communication unit.
A shake amount acquisition method comprising:
- acquiring a shake detection result from a shake detection unit that is configured to detect a shake and is provided in a rotation portion driven to rotate with respect to a base;
- acquiring a drive velocity of the rotation portion;
- and
- calculating a reference value of the shake detection unit-, the reference value corresponding to an offset component of an output of the shake detection unit in a stable state, based on a shake detection result and the drive velocity.
Dependencies are inferred from the claim text.