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Proceedings Paper

A single-imager, single-lens video camera prototype for 3D imaging
Author(s): Lauren A. Christopher; Weixu Li
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Paper Abstract

A new method for capturing 3D video from a single imager and lens is introduced. The benefit of this method is that it does not have the calibration and alignment issues associated with binocular 3D video cameras. It also does not require special ranging transmitters and sensors. Because it is a single lens/imager system, it is also less expensive than either the binocular or ranging cameras. Our system outputs a 2D image and associated depth image using the combination of microfluidic lens and Depth from Defocus (DfD) algorithm. The lens is capable of changing the focus to obtain two images at the normal video frame rate. The Depth from Defocus algorithm uses the in focus and out of focus images to infer depth. We performed our experiments on synthetic and on the real aperture CMOS imager with a microfluidic lens. On synthetic images, we found an improvement in mean squared error compared to the literature on a limited test set. On camera images, our research showed that DfD combined with edge detection and segmentation provided subjective improvements in the resulting depth images.

Paper Details

Date Published: 30 January 2012
PDF: 10 pages
Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 82900Z (30 January 2012); doi: 10.1117/12.908899
Show Author Affiliations
Lauren A. Christopher, Indiana Univ.-Purdue Univ. Indianapolis (United States)
Weixu Li, Indiana Univ.-Purdue Univ. Indianapolis (United States)


Published in SPIE Proceedings Vol. 8290:
Three-Dimensional Image Processing (3DIP) and Applications II
Atilla M. Baskurt; Robert Sitnik, Editor(s)

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