Scene Reconstruction from High Spatio-Angular Resolution Light Fields

Authors

Changil Kim (Disney Research Zurich)
Henning Zimmer (Disney Research Zurich)
Yael Pritch (Disney Research Zurich)
Alexander Sorkine-Hornung (Disney Research Zurich)
Markus Gross (Disney Research Zurich)

ACM SIGGRAPH 2013

July 22, 2013

Scene Reconstruction from High Spatio-Angular Resolution Light Fields-ImageThis paper describes a method for scene reconstruction of complex, detailed environments from 3D light fields. Densely sampled light fields in the order of 109 light rays allow us to capture the real world in unparalleled detail, but efficiently processing this amount of data to generate an equally detailed reconstruction represents a significant challenge to existing algorithms.We propose an algorithm that leverages coherence in massive light fields by breaking with a number of established practices in image-based reconstruction. Our algorithm first computes reliable depth estimates specifically around object boundaries instead of interior regions, by operating on individual light rays instead of image patches. More homogeneous interior regions are then processed in a fine-to-coarse procedure rather than the standard coarse-to-fine approaches. At no point in our method is any form of global optimization performed. This allows our algorithm to retain precise object contours while still ensuring smooth reconstructions in less detailed areas. While the core reconstruction method handles general unstructured input, we also introduce a sparse representation and a propagation scheme for reliable depth estimates which make our algorithm particularly effective for 3D input, enabling fast and memory efficient processing of “Gigaray light fields” on a standard GPU. We show dense 3D reconstructions of highly detailed scenes, enabling applications such as automatic segmentation and image-based rendering, and provide an extensive evaluation and comparison to existing image-based reconstruction techniques.

Download File "Scene Reconstruction from High Spatio-Angular Resolution Light Fields-Paper"
[pdf, 51.35 MB]

Additional files

Download additional file "Scene Reconstruction from High Spatio-Angular Resolution Light Fields Supplementary Material-Supplementary Material"
[pdf, 33.07 MB]

Projects

Copyright Notice

The documents contained in these directories are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.