Compressive Dual Photography
by Adriana SchulzOverview
Dual photography is a technique that enables the interchange of cameras and light sources of a scene, therefore allowing us to take pictures from the point of view of the projector. A fundamental aspect in the implementation of this technique is measurement of the light transport function, a typically large data set. In this work we implement the technique proposed by Sean at al. [1] that uses Compressive Sensing [3] to efficiently acquire the light transport function.Results
Primal image. |
Dual image. |
Primal image. |
Image relighting. |
Dual image. |
Documents
Acknowledgements
This project was elaborated under the supervision of Professor Luiz Velho and the TA Thiago Pereira.References
[1] Pradeep Sen and Soheil Darabi. Compressive Dual Photography. Computer Graphics Forum, 28(2):609-618, 2009.
[2] Pradeep Sen, Billy Chen, Gaurav Garg, Stephen R. Marschner, Mark Horowitz, Marc Levoy, and Hendrik Lensch. Dual Photography. ACM Transactions on Graphics, 24(3):745-755, 2005.
[3] Emmanuel Candes, Justin Romberg, and Terence Tao. Robust uncertainty principles: Exact signal reconstruction from highly incomplete frequency information. IEEE Trans. on Information Theory, 52(2), February 2006.