| 摘要 |
PURPOSE:To process efficiently recognition of an object by controlling the projecting direction of an optical cutting plane and an angle of rotation of the optical cutting plane with respect to the axial circumference. CONSTITUTION:Beams emitted from a laser light source 1 are projected in the direction of an object 11 by a scanner 3 which polarizes the beams independently in the vertical and horizontal directions. The scanner 3 is driven by a signal from a scanner controller 5. Then, a signal generator 7 produces a periodic signal to scan the laser beams periodically and form the optical cutting plane. The output and the output of a D/A converter 9 controlled by a computer 10 are synthesized by a signal synthesizer 6 and inputted to the controller 5. Further, a TV camera 4 picks up a sight including the object 11 on image and its video signal is taken in an image processor 8 and positional information of a part where the optical cutting plane intersects the object 11 is abstracted. Then, the computer 10 computes the distance to the material body based on a principle of triangulation from the geometrical relation with the positional information of a picture element, the camera 4 and the optical cutting plane.
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