A single camera and dot matrix structured light are used for target range measurement with optical triangulation. The probing beams are spatially encoded in the image plane so that each beam can be uniquely identified without confusion. Such an arrangement allows multiple probing beams in a single image frame to obtain target range profiles. Compared with either a stereovision system or an expensive range scanning system, the approach provided in this paper is more practical, efficient, and cost effective. Principles of spatial encoding, optimized optical configuration, beam labeling and system operation are described. The system is demonstrated with 4×7 probing beams and a VGA CMOS camera.


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    Title :

    Spatial Encoding of Structured Light for Ranging With Single Camera


    Additional title:

    Sae Technical Papers


    Contributors:
    Kong, Henry (author) / Sun, Qin (author) / Bauson, William (author)

    Conference:

    SAE 2005 World Congress & Exhibition ; 2005



    Publication date :

    2005-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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