“Content-adaptive parallax barriers for automultiscopic 3D display” by Lanman, Hirsch, Kim and Raskar

  • ©Douglas Lanman, Matthew Hirsch, Yunhee Kim, and Ramesh Raskar

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Title:

    Content-adaptive parallax barriers for automultiscopic 3D display

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Abstract:


    We optimize the performance of automultiscopic barrier-based displays, constructed by stacking a pair of LCD panels. To date, such displays have conventionally employed heuristically-determined parallax barriers, containing a fixed array of slits or pinholes, to provide view-dependent imagery. While recent methods adapt barriers to one or more viewers, we show that both layers can be adapted to the multi-view content as well. The resulting content-adaptive parallax barriers increase display brightness and frame rate. We prove that any 4D light field created by dual-stacked LCDs is the tensor product of two 2D mask functions. Thus, a pair of 1D masks only achieves a rank-1 approximation of a 2D light field. We demonstrate higher-rank approximations using temporal multiplexing.

References:


    1. Kim, Y., Kim, J., Kang, J.-M., Jung, J.-H., Choi, H., and Lee, B. 2007. Point light source integral imaging with improved resolution and viewing angle by the use of electrically movable pinhole array. Optics Express 15, 26, 18253–18267.
    2. Konrad, J., and Halle, M. 2007. 3-D displays and signal processing. IEEE Signal Processing Magazine 24, 6, 97–111.
    3. Lee, D. D., and Seung, H. S. 1999. Learning the parts of objects by non-negative matrix factorization. Nature 401, 788–791.


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