Optical apparatus, interchangeable lens, and method for correcting image blurring
AssigneeCanon Kabushiki Kaisha
InventorShinji Imada
Life of this patent
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Abstract
An optical apparatus includes a blurring detection unit configured to detect image blurring applied to the optical apparatus; and a motion vector calculation unit configured to calculate a motion vector among a plurality of images shot by the optical apparatus. Image blurring is corrected in accordance with a signal obtained from blurring detected by the blurring detection unit; the motion vector is calculated using a correction result of the image blurring; and the image blurring is further corrected using the calculated motion vector.
Claims11
An optical apparatus comprising:
- a first image blurring correction unit configured to correct image blurring by moving a first image blurring correction lens;
- a second image blurring correction unit configured to correct image blurring by moving a second image blurring correction lens;
- a blurring detection unit configured to detect blurring applied to the optical apparatus;
- and
- a motion vector calculation unit configured to calculate a motion vector among a plurality of images shot by the optical apparatus, wherein
- the first image blurring correction unit is capable of correcting image blurring in accordance with a blurring signal detected by the blurring detection unit;
- and
- the second image blurring correction unit is capable of correcting image blurring in accordance with a motion vector signal calculated by the motion vector calculation unit.
An interchangeable lens detachable from a camera and communicable with the camera, comprising:
- a first image blurring correction unit configured to correct image blurring by moving a first image blurring correction lens;
- a second image blurring correction unit configured to correct image blurring by moving a second image blurring correction lens;
- and
- a blurring detection unit configured to detect blurring applied to the interchangeable lens, wherein
- the camera is capable of calculating a motion vector between a plurality of shot images, and transmitting information about the motion vector to the interchangeable lens;
- the first image blurring correction unit is capable of correcting image blurring in accordance with a blurring signal detected by the blurring detection unit;
- and
- the second image blurring correction unit is capable of correcting image blurring in accordance with the information about the motion vector received from the camera.
A method for correcting image blurring, comprising:
- detecting blurring applied to an optical apparatus;
- correcting image blurring in a plurality of images shot by the optical apparatus in accordance with the detected blurring;
- calculating a motion vector between a plurality of images of which the image blurring has been corrected;
- and
- correcting image blurring in accordance with the calculated motion vector.
Dependencies are inferred from the claim text.