Patent ID: 6756910
Filing Date: 2004-06-29
Classification: E05F,E05Y,G01V

Abstract:
A sensor for an automatic door, comprising:image pickup means for taking an image of a predetermined area around a door; distance measurement means for, upon receiving an output from said image pickup means, measuring a distance between said image pickup means and each object which is in the predetermined area and observed in the image taken of the predetermined area; object identification means for, upon receiving an output from said distance measurement means, identifying each object in the predetermined area, for which the distance between it and said image pickup means has been measured, as a background object or an object other than the background object based on the measured distance, and identifying the object other than the background object as the door or an object other than the door; and output means for, upon receiving an output from said object identification means, outputting an object detection signal for an object that is observed in the image taken of the predetermined area and is neither the background object nor the door.