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Manipulating refractive and reflective binocular disparity, Eurographics 2014

Manipulating refractive and reflective binocular disparity

Łukasz Dąbała1,4     Petr Kellnhofer1     Tobias Ritschel1,3     Piotr Didyk2    
Krzysztof Templin1,2     Karol Myszkowski1     Przemysław Rokita4     Hans-Peter Seidel1

1MPI Informatik     2MIT CSAIL     3Saarland University     4Warsaw University of Technology    

We split a synthetic stereo image (a) into a ray tree (b), and compute its multiple disparity interpretations (c), which are put into a cost function (d), that are used to find new camera setting (e) leading to an optimized combined stereo image (f).


Presenting stereoscopic content on 3D displays is a challenging task, usually requiring manual adjustments. A number of techniques have been developed to aid this process, but they account for binocular disparity of surfaces that are diffuse and opaque only. However, combinations of transparent as well as specular materials are common in the real and virtual worlds, and pose a significant problem. For example, excessive disparities can be created which cannot be fused by the observer. Also, multiple stereo interpretations become possible, e. g., for glass, that both reflects and refracts, which may confuse the observer and result in poor 3D experience. In this work, we propose an efficient method for analyzing and controlling disparities in computer-generated images of such scenes where surface positions and a layer decomposition are available. Instead of assuming a single per-pixel disparity value, we estimate all possibly perceived disparities at each image location. Based on this representation, we define an optimization to find the best per-pixel camera parameters, assuring that all disparities can be easily fused by a human. A preliminary perceptual study indicates, that our approach combines comfortable viewing with realistic depiction of typical specular scenes.



Paper (10.6 MiB).
Stereo video (27.6 MiB), Anaglyph video (23.1 MiB).
Supplemental images (HQ) (124 MiB).
Eurographics 2014 presentation slides (52 MiB).

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Łukasz Dąbała, Petr Kellnhofer, Tobias Ritschel, Piotr Didyk, Krzysztof Templin, Karol Myszkowski, Przemysław Rokita, Hans-Peter Seidel
Manipulating refractive and reflective binocular disparity
Computer Graphics Forum 33(2) (Proc. Eurographics 2014), 2014.

  author = { 
	{\L}ukasz D\k{a}ba\l{}a and
	Petr Kellnhofer and
	Tobias Ritschel and
	Piotr Didyk and
	Krzysztof Templin and
	Karol Myszkowski and 
	Przemys\l{}aw Rokita and
	Hans-Peter Seidel},
  title = {Manipulating refractive and reflective binocular disparity},
  journal = {Computer Graphics Forum (Proc. Eurographics 2014)},
  year = {2014},
  volume = {33},
  number = {2},
  issn = {1467-8659},
  url = {},
  doi = {10.1111/cgf.12290},
  pages = {53--62}

Computer Graphics Forum © 2014 The Eurographics Association and Blackwell Publishing Ltd. Published by Blackwell Publishing, 9600 Garsington Road, Oxford OX4 2DQ, UK and 350 Main Street, Malden, MA 02148, USA. This is the author's version of the work. It is posted here by permission of EUROGRAPHICS / Blackwell Publishing for your personal use. Not for redistribution.
The definitive version was published in at and DOI: 10.1111/cgf.12290.