Method and apparatus for calibrating multiple cameras using mirrors
AssigneeElectronics and Telecommunications Research Institute
InventorsHyun Kang, Jae-Hean Kim, Chang-Joon Park, Jin-Sung Choi
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Abstract
Method and apparatus for calibrating multiple cameras. A first mirror and a second mirror are arranged opposite each other. An object is disposed between the first mirror and the second mirror. Calibration of the multiple cameras is performed using a figure of the object formed on the second mirror via reflection from the first mirror and the second mirror.
Claims20
An apparatus for calibrating multiple cameras, comprising:
- a first mirror;
- a second mirror arranged opposite the first mirror;
- and
- an object disposed between the first mirror and the second mirror,
- wherein multiple cameras are calibrated using a figure of the object formed on the second mirror via reflection from the first mirror and the second mirror,
- wherein the object has a first shape viewed in a direction of the first mirror and a second shape, which is different from the first shape, viewed in a direction of the second mirror, and
- when a figure of the first shape and a figure of the second shape are repeatedly indicated in an image acquired when the multiple cameras capture the image of the second mirror, calibration of the multiple cameras is applied using the figure of the first shape and the figure of the second shape.
A method for calibrating multiple cameras, comprising:
- setting up an environment for calibration of multiple cameras;
- capturing an image of a second mirror using the multiple cameras, thus generating the image;
- acquiring information for calibration of the multiple cameras using the image;
- and
- performing calibration of the multiple cameras using the acquired information,
- wherein a first mirror and the second mirror are arranged opposite each other, and
- wherein the image indicates a figure of an object formed on the second mirror via reflection from the first mirror and the second mirror,
- wherein the object has a first shape viewed in a direction of the first mirror and a second shape, which is different from the first shape, viewed in a direction of the second mirror, and
- when a figure of the first shape and a figure of the second shape are repeatedly indicated in an image acquired when the multiple cameras capture the image of the second mirror, calibrating the multiple cameras using the figure of the first shape and the figure of the second shape.
A method for calibrating multiple cameras, the method being performed by multiple cameras disposed between a first mirror and a second mirror, the method comprising:
- capturing an image of the second mirror, thus generating the image;
- acquiring information for calibration using the image;
- and
- performing calibration using the acquired information,
- wherein the first mirror and the second mirror are arranged opposite each other, and
- wherein the image indicates a figure of an object formed on the second mirror via reflection from the first mirror and the second mirror,
- wherein the object has a first shape viewed in a direction of the first mirror and a second shape, which is different from the first shape, viewed in a direction of the second mirror, and
- when a figure of the first shape and a figure of the second shape are repeatedly indicated in an image acquired when the multiple cameras capture the image of the second mirror, calibrating the multiple cameras using the figure of the first shape and the figure of the second shape.
Dependencies are inferred from the claim text.