CAMERA CALIBRATION APPARATUS AND METHODS
First Claim
1. A camera calibration apparatus, comprising:
- a first camera holder;
a first test pattern; and
a first mirror for reflecting an image of the first test pattern to a camera in said first camera holder when said first mirror is in a first position facing said first camera holder.
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Accused Products
Abstract
An exemplary camera calibration apparatus includes a movable, e.g., rotatable, support structure which is controllably positioned to allow for image capture of different test patterns and image capture of the same pattern at different distances by a mounted camera. A first test pattern is mounted on a wall, e.g., a pyramid shaped 4 sided wall formed by panels surrounding the camera under calibration. The movable support structure has a first mirror attached to a first side and has a second test pattern attached to a second side. A second mirror mounted on an internal sidewall of the calibration apparatus housing facilities a different image path distance between the camera capturing the image of the first test pattern and the first test pattern. The exemplary camera calibration apparatus is well suited for efficiently calibrating camera devices including a plurality of camera modules, e.g., optical chains, in a relatively small area.
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Citations
20 Claims
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1. A camera calibration apparatus, comprising:
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a first camera holder; a first test pattern; and a first mirror for reflecting an image of the first test pattern to a camera in said first camera holder when said first mirror is in a first position facing said first camera holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of operating a camera test apparatus, the method comprising:
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controlling one or more modules in a camera to capture an image of a first test pattern when a movable support on which a first mirror is in a mounted is in a first position, said first mirror facing the camera when the movable support is in the first position; moving the movable support to a second position so that a second test pattern mounted on the movable support is facing the camera; and controlling the one or more modules in the camera to capture an image of the second test pattern when the movable support is in the second position. - View Dependent Claims (18)
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19. A controller for use in a camera test apparatus, the controller comprising:
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memory including instructions for controlling movement of a movable support between different positions and to control a camera to take images while at said different positions; and a processor configured to control the test apparatus in accordance with said instructions when said instructions are executed, said processor being configured to; control one or more modules in a camera to capture an image of a first test pattern when a movable support, on which a first mirror is mounted, is in a first position, said first mirror facing the camera when the movable support is in the first position; control a motor to move the movable support to a second position so that a second test pattern mounted on the movable support is facing the camera; and control the one or more modules in the camera to capture an image of the second test pattern when the movable support is in the second position. - View Dependent Claims (20)
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Specification