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Applications of Light Field and Computational Photography

Po-Hsiang Chen Advisor: Sheng- Jyh Wang. Applications of Light Field and Computational Photography. People. Shree K. Nayar Ramesh  Raskar Ren Ng. Light Field. 5D representation. 4 D representation. Levoy , M. (2006). "Light fields and computational imaging." Computer 39 (8): 46-55.

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Applications of Light Field and Computational Photography

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  1. Po-Hsiang Chen Advisor: Sheng-Jyh Wang Applications ofLight FieldandComputational Photography

  2. People • Shree K. Nayar • Ramesh  Raskar • Ren Ng

  3. Light Field 5D representation 4D representation Levoy, M. (2006). "Light fields and computational imaging." Computer39(8): 46-55.

  4. Computational Photography • Extend the capabilities of digital photography

  5. App: Light Field Rendering

  6. App: Synthetic Aperture Photography

  7. App: Wave-front Coding Object CCD Lens Wave-front Coding Optical Element 曾禎宇,” [090204]Wavefront_coding,” Vision Lab, NCTU Levin, A., R. Fergus, et al. (2007). "Image and depth from a conventional camera with a coded aperture." ACM Transactions on Graphics (TOG)26(3): 70-es.

  8. What we are interesting in …

  9. App: Dual Photography standard photograph from camera dual photograph from projector Sen, P., B. Chen, et al. (2005). "Dual photography." ACM Transactions on Graphics (TOG)24(3): 745-755.

  10. Helmholtz reciprocity primal projector photosensor scene

  11. Helmholtz reciprocity dual projector projector camera photosensor photosensor light scene

  12. C’ shrinks to 1x1 scalar T shrinks to 1xpq vector Result Dual photo Scanning through the projector

  13. Flying spot scanner http://en.wikipedia.org/wiki/Mechanical_television#Flying_spot_scanners

  14. Adaptive Multiplexed Illumination

  15. Scene relighting Camera Array?

  16. App: Looking Around the Corner Kirmani, A., T. Hutchison, et al. (2009). “Looking around the corner using transient imaging.” ICCV2009, CVPR2011

  17. Transient Light Transport • Scene S with M small planar Pi • Zidefines the 3D position • Dijdefines the distances between Ps

  18. Space Time Impulse Response

  19. Distance from STIR

  20. Structure from Pairwise Distance • Isometric embedding Dattorro, J. (2005). "Convex optimization & Euclidean distance geometry", Meboo Publishing USA.

  21. Scenes with Occluders

  22. 3D displays: Stereoscopic • Disparity http://en.wikipedia.org/wiki/3D_display

  23. Anaglyph image

  24. Polarized glasses

  25. Shutter glasses

  26. Glass-free: Parallax barrier

  27. Glass-free: Holography Schnars, U. and W. Jueptner (2005). "Digital holography", Springer.

  28. Slinger, C., C. Cameron, et al. (2005). "Computer-generated holography as a generic display technology." Computer38(8): 46-53.

  29. App: Layered 3D Wetzstein, G., D. Lanman, et al. (2011). “Layered 3D: tomographic image synthesis for attenuation-based light field and high dynamic range displays,” ACM, Siggraph 2011.

  30. Tomographic Image Synthesis

  31. Prototype multi-layer display

  32. http://web.media.mit.edu/~dlanman/research/Layered3D/index.htmlhttp://web.media.mit.edu/~dlanman/research/Layered3D/index.html

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