Binocular vision measurement using Dammann grating.

In this paper, we propose a novel three-dimensional (3D) profilometry using a binocular camera and a 64 × 64 Dammann grating for generation of a regular square laser array. A new constraint called a "ray constraint," taking advantage of the splitting characteristic of Dammann grating, is proposed for binocular matching. Binocular matching is realized by using ray constraint and precalibration of a laser array. Point clouds without outliers are obtained with binocular matching results according to triangulation. The experimental apparatus weighs less than 170 g with a width of less than 14 cm. We used this apparatus to scan a statue of Apollo under indoor illumination (at 450 lux). Its 3D model with complex profile was reconstructed by more than 150,000 points. This 3D profilometry has advantages of low cost, low power, and small size and should be useful for practical applications.

[1]  Changhe Zhou,et al.  Three-dimensional profilometry using a Dammann grating. , 2009, Applied optics.

[2]  Changhe Zhou,et al.  Optimized stereo matching in binocular three-dimensional measurement system using structured light. , 2014, Applied optics.

[3]  Martin Schaffer,et al.  Coherent two-beam interference fringe projection for highspeed three-dimensional shape measurements. , 2013, Applied optics.

[4]  Jason Geng,et al.  Structured-light 3D surface imaging: a tutorial , 2011 .

[5]  Yan Li,et al.  A non-encoding structured light approach with infrared illumination for 3D large field shape measurement , 2013 .

[6]  C. Zhou,et al.  Numerical study of Dammann array illuminators. , 1995, Applied optics.

[7]  Richard I. Hartley,et al.  Theory and Practice of Projective Rectification , 1999, International Journal of Computer Vision.

[8]  Qican Zhang,et al.  Dynamic 3-D shape measurement method: A review , 2010 .

[9]  Changhe Zhou,et al.  Miniaturized three-dimensional endoscopic imaging system based on active stereovision. , 2003, Applied optics.

[10]  H. Dammann,et al.  High-efficiency in-line multiple imaging by means of multiple phase holograms , 1971 .

[11]  Gérard G. Medioni,et al.  Object modelling by registration of multiple range images , 1992, Image Vis. Comput..

[12]  Ehud Rivlin,et al.  Qualitative real-time range extraction for preplanned scene partitioning using laser beam coding , 2005, Pattern Recognit. Lett..

[13]  Song Zhang,et al.  High-speed absolute three-dimensional shape measurement using three binary dithered patterns. , 2014, Optics express.

[14]  Gérard G. Medioni,et al.  Object modeling by registration of multiple range images , 1991, Proceedings. 1991 IEEE International Conference on Robotics and Automation.

[15]  Lei Zhang,et al.  Robust ICP Registration Using Biunique Correspondence , 2011, 2011 International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission.