GraphDeco

A Bayesian Approach for Selective Image-Based Rendering using Superpixels
Presentation | Team members | Collaborations | Publications | Job offers | Contact

 

A Bayesian Approach for Selective Image-Based Rendering using Superpixels

Rodrigo Ortiz-Cayon, Abdelaziz Djelouah, George Drettakis
International Conference on 3D Vision (3DV) - 2015
Download the publication : Ortiz-Cayon_3DV2015.pdf [22.6Mo]  
Image-Based Rendering (IBR) algorithms generate high quality photo-realistic imagery without the burden of de-tailed modeling and expensive realistic rendering. Recent methods have different strengths and weaknesses, depending on 3D reconstruction quality and scene content. Each algorithm operates with a set of hypotheses about the scene and the novel views, resulting in different quality/speed trade-offs in different image regions. We present a principled approach to select the algorithm with the best quality/speed trade-off in each region. To do this, we propose a Bayesian approach, modeling the rendering quality, the rendering process and the validity of the assumptions of each algorithm. We then choose the algorithm to use withMaximum a Posteriori estimation. We demonstrate the utility of our approach on recent IBR algorithms which useover segmentation and are based on planar reprojection and shape-preserving warps respectively. Our algorithm selects the best rendering algorithm for each superpixel in a preprocessing step; at runtime our selective IBR uses this choice to achieve significant speed up at equivalent or better quality compared to previous algorithms.

Images and movies

 

See also

See also (hal version)

BibTex references

@InProceedings{ODD15,
  author       = "Ortiz-Cayon, Rodrigo and Djelouah, Abdelaziz and Drettakis, George",
  title        = "A Bayesian Approach for Selective Image-Based Rendering using Superpixels",
  booktitle    = "International Conference on 3D Vision (3DV)",
  year         = "2015",
  publisher    = "IEEE",
  key          = "Image-based rendering, image warp, superpixels, variational warp, wide baseline, multi-view stereo",
  url          = "http://www-sop.inria.fr/reves/Basilic/2015/ODD15"
}

Other publications in the database

» Rodrigo Ortiz-Cayon
» Abdelaziz Djelouah
» George Drettakis