Single camera stereo system using prism and mirrors

People: Gowri Somanath, Rohith MV and Chandra Kambhamettu

Stereo and 3D reconstruction are used by many applications such as object modeling, facial expression studies and human motion analysis. But synchronizing multiple high frame rate cameras require special hardware or sophisticated software solutions. In this work, we build a single camera stereo system by using a setup made of prism and mirrors. Our setup is cost effective, portable and can be calibrated similar to traditional stereo to obtain high quality 3D reconstruction. We demonstrate the system with three applications with different needs. First,we use the system for depth super resolution of dynamic scenes, which uses high frame rate stereo video capability. Next we apply the calibrated system for the case of metric 3D reconstruction of dynamic and close range scenes. Lastly we show stereo results for different distances - close range (within a feet), medium range (within 5 feet) and far range outdoor scene. We present results for static and dynamic scenes.

Related publications

• Gowri Somanath, Rohith MV, Chandra Kambhamettu, Single camera stereo system using prism and mirrors. International Symposium on Visual Computing (ISVC), G. Bebis et al. (Eds.): ISVC 2010, Part II, LNCS 6454, pp. 170–181,Springer-Verlag Berlin Heidelberg 2010.
• Patent pending 'Prism Camera Methods, Apparatus and Systems' (PCT/US11/62314)

Other results

3D model reconstructed from videos recorded using the above system and pattern projector (see our flash based projector)

(click for larger image)

Other projects with stereo camera systems 3D reconstruction of sea ice topography, Flash based projector system