VEHICLE-MOUNTED PHOTOGRAPHING DEVICE AND METHOD OF MEASURING PHOTOGRAPHABLE RANGE OF VEHICLE-MOUNTED CAMERA
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Abstract
A vehicle-mounted pickup device measures an image pickup movable range of a camera mounted inside a vehicle based on a video signal obtained by picking up images with the camera, while changing (rotating) the image pickup direction of the camera in the yaw direction. The vehicle-mounted pickup device can increase a degree of freedom in selecting the instillation position of the camera inside the vehicle.
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Citations
33 Claims
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1-13. -13. (canceled)
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14. A vehicle-mounted image pickup device that picks up a scene inside a vehicle cabin or outside a vehicle, the image pickup device comprising:
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a camera; a camera platform located inside said vehicle for mounting said camera thereon and rotating said camera according to a rotation signal generated in order to change an image pickup direction of said camera; signal supply means for supplying, to said camera platform, said rotation signal to rotate the image pickup direction of said camera to a yaw direction; in-vehicle specific point counting means for detecting predetermined in-vehicle specific points, except for A pillars, from an image represented by a video signal obtained by picking up images with said camera, and counting the number of the specific points as an in-vehicle specific point count; initial direction setting means for determining whether said image pickup direction is set to the inside the vehicle or outside the vehicle based on said in-vehicle specific point count, and setting the direction determined to have been set to the inside the vehicle as an initial direction; image pickup movable range measurement means for measuring an in-vehicle image pickup movable range of said camera based on said video signal from a state in which said camera faces in said initial direction; and storage means for storing information indicating said in-vehicle image pickup movable range. - View Dependent Claims (15, 16, 17, 18, 19, 20, 25, 26, 27, 32)
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21. An image pickup movable range measurement method for a vehicle-mounted camera to measure an image pickup movable range of a camera installed inside a vehicle cabin, the method comprising:
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a step of detecting predetermined in-vehicle specific points, except for A pillars, from an image represented by a video signal obtained by picking up images with said camera, and counting the number of the specific points as an in-vehicle specific point count; a step of determining whether said image pickup direction is set to the inside the vehicle or outside the vehicle based on said in-vehicle specific point count, and setting the direction determined to have been set to the inside the vehicle as an initial direction; and an in-vehicle image pickup movable range measurement step of detecting two A pillars of said vehicle from an image represented by said video signal based on the video signal obtained by picking up images with said camera, while rotating the image pickup direction of said camera from said initial direction to a yaw direction, and determining the in-vehicle image pickup movable range based on the image pickup directions of said camera when said two A pillars are detected. - View Dependent Claims (22, 23, 24, 28, 29, 30, 31, 33)
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Specification