Aiming at problem that calibration of line structured light sensor requires a specific target and calculate relative position of the target and world coordinate system in realtime

a method for line structured light sensor calibration based on homography matrix is proposed. Use uniqueness of line structured light sensor corresponding to homography matrix by calibrating light plane corresponding to homography matrix to mode for matching of the laser stripes in left-right view

and through binocular parallax principle to obtain the three-dimensional spatial coordinates of laser stripes. Correctness

stability and feasibility of calibrating of using homography matrix to calibrate line structured light sensor are tested. Experimental results show that the calibration method does not require target assistance

calibration process is simple

stability is good

and the line structure light sensor can be calibrated in real-time.