Novel-view synthesis of outdoor sport events using an adaptive view-dependent geometry
We propose a novel fully automatic method for novel-viewpoint synthesis. Our method robustly handles multi-camera setups featuring wide-baselines in an uncontrolled environment. In a first step, robust and sparse point correspondences are found based on an extension of the Daisy features. These correspondences together with back-projection errors are used to drive a novel adaptive coarse to fine reconstruction method, allowing to approximate detailed geometry while avoiding an extreme triangle count.
To render the scene from arbitrary viewpoints we use a view-dependent blending of color information in combination with a view-dependent geometry morph. The view-dependent geometry compensates for misalignments caused by calibration errors. We demonstrate that our method works well under arbitrary lighting conditions with as little as two cameras featuring wide-baselines. The footage taken from real sports broadcast events contains fine geometric structures, which result in nice novel-viewpoint renderings despite of the low resolution in the images.
© Copyright 2012 Computer Graphics Forum. Wiley. All rights reserved.
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| Notations: | technical and natural sciences sport games |
| Published in: | Computer Graphics Forum |
| Language: | English |
| Published: |
2012
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| Online Access: | http://doi.org/10.1111/j.1467-8659.2012.03011.x |
| Volume: | 31 |
| Issue: | 2.1 |
| Pages: | 325-333 |
| Document types: | article |
| Level: | advanced |