APPARATUS AND METHOD FOR CORRECTING IMAGE DISTORTION OF A CAMERA FOR VEHICLE
First Claim
1. An apparatus for correcting image distortion of a camera in a vehicle, comprising:
- a camera mounted in the vehicle;
a camera characteristic extractor configured to extract camera characteristic parameters of the camera based on a preset mathematical model;
a tilt angle calculator configured to calculate a tilt angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters;
a yaw angle calculator configured to calculate a yaw angle of the virtual camera in each of the one or more photographing regions;
a correction model creator configured to create a correction model by applying the calculated tilt angle and calculated the yaw angle of the virtual camera in each of the one or more photographing regions;
an image corrector configured to view-transform a photographed image photographed by the camera by adjusting an angle of the virtual camera based on the created correction model in order to secure a view region of the photographed image and create a corrected image depending on the view-transform; and
a display configured to display the corrected image output from the image corrector.
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Accused Products
Abstract
An apparatus for correcting image distortion of a camera in a vehicle includes: a camera mounted in the vehicle; a camera characteristic extractor configured to extract camera characteristic parameters of the camera based on a preset mathematical model; a tilt angle calculator configured to calculate tilt angles of a virtual camera corresponding to the camera in each photographing region using the camera characteristic parameters; a yaw angle calculator configured to calculate yaw angles of the virtual camera in each photographing region; an image corrector configured to view-transform a photographed image photographed by the camera by adjusting angles of the virtual camera based on a correction model in order to secure a view region of the photographed image and create a corrected image depending on the view-transform; and a display configured to display the corrected image output from the image corrector.
34 Citations
16 Claims
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1. An apparatus for correcting image distortion of a camera in a vehicle, comprising:
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a camera mounted in the vehicle; a camera characteristic extractor configured to extract camera characteristic parameters of the camera based on a preset mathematical model; a tilt angle calculator configured to calculate a tilt angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; a yaw angle calculator configured to calculate a yaw angle of the virtual camera in each of the one or more photographing regions; a correction model creator configured to create a correction model by applying the calculated tilt angle and calculated the yaw angle of the virtual camera in each of the one or more photographing regions; an image corrector configured to view-transform a photographed image photographed by the camera by adjusting an angle of the virtual camera based on the created correction model in order to secure a view region of the photographed image and create a corrected image depending on the view-transform; and a display configured to display the corrected image output from the image corrector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for correcting image distortion of a camera in a vehicle, comprising:
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extracting camera characteristic parameters of the camera which is mounted in the vehicle; calculating a tilt angle and a yaw angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; creating a correction model by applying the calculated tilt angle and the calculated yaw angle in each of the one or more photographing regions; adjusting an angle of the virtual camera based on the created correction model in order to secure a view region of a photographed image photographed by the camera; view-transforming the photographed image depending on the adjustment of the angle of the virtual camera to create a corrected image; and displaying the corrected image. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium containing program instructions for correcting image distortion of a camera in a vehicle, the computer readable medium comprising:
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program instructions that extract camera characteristic parameters of the camera which is mounted in the vehicle; program instructions that calculate a tilt angle and a yaw angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; program instructions that create a correction model by applying the calculated tilt angle and the calculated yaw angle in each of the one or more photographing regions; program instructions that adjust an angle of the virtual camera based on the created correction model in order to secure a view region of a photographed image photographed by the camera; program instructions that view-transform the photographed image depending on the adjustment of the angle of the virtual camera to create a corrected image; and program instructions that display the corrected image.
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Specification