Three-dimensional imaging solutions provide depth perception that cannot be achieved with traditional two-dimensional systems. A 3D optical inspection system can be implemented using structured light as 3D sensing technology. In this paper, we show that structured light can be projected onto the measured object by means of an innovative scanning microsystem that employs a single-axis torsional MEMS mirror for fast steering a near infra-red laser beam on a diffractive silicon microstructure. As a proof of principle of the functionality of the designed microsystem, the generated line patterns are shone on 3D objects and deformation of the projected lines is detected with a CMOS camera. From line deformation, the object depth is calculated and found in accordance to the geometrical size. The developed miniaturized solution overcomes typical drawbacks of other scanning technologies such as large size and heavy weight.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Infrared structured light generation by optical MEMS and application to depth perception


    Contributors:


    Publication date :

    2017-06-01


    Size :

    1643378 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    High-accuracy stereo depth maps using structured light

    Scharstein, D. / Szeliski, R. | IEEE | 2003


    Using structured light for efficient depth edge detection

    Park, J. / Kim, C. / Na, J. et al. | British Library Online Contents | 2008


    High-Accuracy Stereo Depth Maps Using Structured Light

    Scharstein, D. / Szeliski, R. / IEEE | British Library Conference Proceedings | 2003