Proc. SPIE. 8659, Sensors, Cameras, and Systems for Industrial and Scientific Applications XIV
KEYWORDS: 3D image processing, Imaging systems, Cameras, Lens design, Modulation transfer functions, Image resolution, 3D image reconstruction, 3D metrology, 3D modeling, Structured light
There are many visual inspection and sensing applications where both a high resolution image and a depth-map of the
imaged object are desirable at high speed. Presently available methods to capture 3D data (stereo cameras and structured
illumination), are limited in speed, complexity, and transverse resolution. Additionally these techniques rely on a
separated baseline for triangulation, precluding use in confined spaces. Typically, off the shelf lenses are implemented
where performance in resolution, field-of-view, and depth of field are sacrificed in order to achieve a useful balance.
Here we present a novel lens system with high-resolution and wide field-of-view for rapid 3D image capture. The design
achieves this using a single lens with no moving parts. A depth-from-defocus algorithm is implemented to reconstruct
3D object point clouds and matched with a fused image to create a 3D rendered view.
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