Optical axis deviation angle correction device, crane, and optical axis deviation angle correction method
AssigneeTadano Ltd.
InventorsKazuaki MARUYAMA, Kazuya TANIZUMI, Hiroyuki HAYASHI
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Abstract
An optical axis deviation angle correction device includes: a camera that has a lens and captures an image including a target whose position is known; and a controller that draws a mark indicating a position of an optical axis of the lens on a captured image of the camera, calculates a deviation angle of an optical axis of the lens with respect to an imaging direction of the camera based on a positional relationship between the mark and the target in the captured image, and corrects a position of the mark in a manner that the mark in the captured image overlaps with the target based on the deviation angle of the optical axis.
Claims11
An optical axis deviation angle correction device comprising:
- a camera that has a lens and captures an image including a target whose position is known;
- and
- a controller that draws a mark indicating a position of an optical axis of the lens on a captured image of the camera, calculates a deviation angle of an optical axis of the lens with respect to an imaging direction of the camera based on a positional relationship between the mark and the target in the captured image, and corrects a position of the mark in a manner that the mark in the captured image overlaps with the target based on the deviation angle of the optical axis.
An optical axis deviation angle correction method comprising:
- capturing an image including a target whose position is known by a camera having a lens;
- drawing a mark indicating a position of an optical axis of the lens on a captured image of the camera,
- calculating a deviation angle of an optical axis of the lens with respect to an imaging direction of the camera based on a positional relationship between the mark and the target in the captured image, and
- correcting a position of the mark in a manner that the mark in the captured image overlaps with the target based on the deviation angle of the optical axis.
Dependencies are inferred from the claim text.