Image capture apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasahiro Kawarada
Life of this patent
Estimating the term…
Abstract
An image capture apparatus which captures an object image formed by an imaging lens, comprises a focus detection unit which detects a focus position of the object image at a plurality of positions on an image sensing plane, a prediction unit which stores the past output from the focus detection unit, and predicts a locus of the focus position of the object image based on the stored output, thereby predicting the focus position of the object image at a predetermined time instant, a detection unit which detects a shift of the object image on the image sensing plane, and a control unit which changes the output from the prediction unit based on the output from the detection unit.
Claims20
An image capture apparatus which captures an object image formed by an imaging lens, the apparatus comprising:
- a focus detection unit which detects a focus position of the object image at a plurality of positions on an image sensing plane;
- a prediction unit which stores the past output from said focus detection unit, and predicts a locus of the focus position of the object image based on the stored output, thereby predicting the focus position of the object image at a predetermined time instant;
- a detection unit which detects a shift of the object image on the image sensing plane;
- and
- a control unit which changes the output from said prediction unit based on the output from said detection unit.
An image capture apparatus which captures an object image formed by an imaging lens, the apparatus comprising:
- a focus detection unit which detects a focus position of the object image at a plurality of positions on an image sensing plane;
- a prediction unit which stores the past output from said focus detection unit, and predicts a locus of the focus position of the object image based on the stored output, thereby predicting the focus position of the object image at a predetermined time instant;
- a first detection unit which detects a shift of the object image on the image sensing plane using a method in which said first detection unit is influenced by the imaging lens;
- a second detection unit which detects a shift of the object image on the image sensing plane using a method in which said second detection unit is not influenced by the imaging lens;
- and
- a control unit which changes the output from said prediction unit based on a difference between the output from said first detection unit and the output from said second detection unit.
Dependencies are inferred from the claim text.