This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
Optical Splitting Trees for High-Precision Monocular Imaging
March/April 2007 (vol. 27 no. 2)
pp. 32-42
Morgan McGuire, Williams College
Wojciech Matusik, Mitsubishi Electric Research Laboratories (MERL)
Hanspeter Pfister, Mitsubishi Electric Research Laboratories (MERL)
Billy Chen, Stanford University
John F. Hughes, Brown University
Shree K. Nayar, Columbia University
This paper introduces a framework to design optical splitting tree to perform computational photography tasks that require many sensors with a common optical axis. As the number of sensors increases, designing a good optical system is often difficult because the components have nonideal characteristics. The authors describe an optimization tool takes this into account and finds "good" designs as specified by several weighted coefficients. Assisted by this optimizer, they demonstrate high-dynamic range, focusing, matting, high-speed, and hybrid imaging implemented on a single, reconfigurable camera containing eight sensors.

1. P.E. Debevec and J. Malik, "Recovering High Dynamic Range Radiance Maps from Photographs," Proc. Siggraph, ACM Press, 1997, pp. 369–378.
2. T. Mitsunaga and S. Nayar, "High Dynamic Range Imaging: Spatially Varying Pixel Exposures," Proc. IEEE CS Conf. Computer Vision and Pattern Recognition (CVPR), vol. 1, IEEE CS Press, 2000, pp. 472–479.
3. M. Aggarwal and N. Ahuja, "Split Aperture Imaging for High Dynamic Range," Int'l J. Computer Vision, vol. 58, no. 1, 2004, pp. 7–17.
4. S.K. Nayar, M. Watanabe, and M. Noguchi, "Real-Time Focus Range Sensor," IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 18, no. 12, 1996, pp. 1186–1198.
5. S. Chaudhuri and A. Rajagopalan, Depth from Defocus: A Real Aperture Imaging Approach, Springer Verlag, 1998.
6. Y. Xiong and S. Shafer, "Depth from Focusing and Defocusing," Proc. Computer Vision and Pattern Recognition, IEEE CS Press, 1993, pp. 68–73.
7. M. Subbarao, "Parallel Depth Recovery by Changing Camera Parameters." Proc. 6th Int'l Conf. Computer Vision (ICCV), IEEE CS Press, 1998, pp. 149–155.
8. M. McGuire et al., "Defocus Matting," ACM Trans. Graphics, vol. 24, 2005, pp. 567–576.
9. P. Debevec et al., "A Lighting Reproduction Approach to Live-Action Compositing," ACM Trans. Graphics, vol. 21. no. 3, 2002, pp. 547–556.
1. E. Ikeda Image Data Processing Apparatus for Processing Combined Image Signals in Order to Extend Dynamic Range, US patent 5801773, Sept. 1998.
2. S.K. Nayar, M. Watanabe, and M. Noguchi, "Real-Time Focus Range Sensor," IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 18, no. 12, 1996, pp. 1186–1198.
3. M. McGuire et al., "Defocus Matting," ACM Trans. Graphics, vol. 24, 2005, pp. 567–576.
4. M. Aggarwal and N. Ahuja, "Split Aperture Imaging for High Dynamic Range," Int'l J. Computer Vision, vol. 58, no. 1, 2004, pp. 7–17.
5. R.P. Harvey Optical Beam Splitter and Electronic High-Speed Camera Incorporating Such a Beam Splitter, US patent US5734507, 1998.
6. K.-H. Tan, H. Hua, and N. Ahuja, "Multiview Mirror Pyramid Cameras," IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 26, no. 7, 2004, pp. 941–946.
7. B. Wilburn et al, "High-Speed Video Using a Dense Camera Array," Proc. Computer Vision and Pattern Recognition, IEEE CS Press, 2004.
8. T. Mitsunaga and S. Nayar, "High Dynamic Range Imaging: Spatially Varying Pixel Exposures," Proc. Computer Vision and Pattern Recognition, IEEE CS Press, vol. 1, 2000, pp. 472–479.
9. S. Nayar and S. Narasimhan, "Assorted Pixels: Multisampled Imaging with Structural Models," Proc. European Conf. Computer Vision, 2002, p. 636.

Index Terms:
computational photography, optical design, high dynamic range, focusing, high-speed, splitting tree
Citation:
Morgan McGuire, Wojciech Matusik, Hanspeter Pfister, Billy Chen, John F. Hughes, Shree K. Nayar, "Optical Splitting Trees for High-Precision Monocular Imaging," IEEE Computer Graphics and Applications, vol. 27, no. 2, pp. 32-42, March-April 2007, doi:10.1109/MCG.2007.45
Usage of this product signifies your acceptance of the Terms of Use.