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Carnegie Mellon Robotics Institute

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Abstract

We present a new telecentric lens which is able to gain 3D information. The proposed lens system has multiple aperture stops which enable to capture multi-directional parallel light rays, while a conventional telecentric lens has only one aperture stop, and can capture only light rays which are perpendicular to the lens. We explain the geometry of the multi-aperture telecentric system and show that correspondences fall on a line like those in a conventional stereo. As it is a single-lens sensor, we also introduce the principles of 3D reconstruction. Unlike a conventional stereo camera, the disparity of a scene point measured by the proposed lens system is linearly proportional to the depth of a scene point.

Notes

Number of pages: 3

Text Reference

Junsik Kim and Takeo Kanade, "Multi-aperture Telecentric Lens for 3D Reconstruction," Optics Letters, Vol. 36, No. 7, April, 2011, pp. 1050-1052.

BibTeX Reference

@article{Kim_2011_6831,
   author = "Junsik Kim and Takeo Kanade",
   title = "Multi-aperture Telecentric Lens for 3D Reconstruction",
   journal = "Optics Letters",
   pages = "1050-1052",
   publisher = "Optical Society of America",
   month = "April",
   year = "2011",
   number= "Pittsburgh",
   volume = "36",
   number = "7",
}

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