Optical axis ascertaining device for in-vehicle camera
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United States of America Patent
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Sep 13, 2016
Grant Date -
Nov 20, 2014
app pub date -
Sep 13, 2011
filing date -
Sep 13, 2011
priority date (Note) -
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Abstract
The present invention aims to provide an optical axis ascertaining device for an in-vehicle camera which can simply adjust and correct the optical axis of the camera. This device comprises image processing device (image recognition portion and tracking portion) detecting a static obstacle (for example, wheel stopper disposed on ground surface) from an image acquired by rear camera through image recognition and tracking the static obstacle and rear wheel rotation sensor as a sensor detecting a movement distance of a vehicle, for example; and ascertains the optical axis direction of the camera, based on an attachment position of the camera and the movement distance of the vehicle from where a static object being tracked is out of an image capturable region of the rear camera due to an approach of the vehicle to where the vehicle comes into contact with the static object.
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