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Dynamic and Scalable Large Scale Image Reconstruction


Recent approaches to reconstructing city-sized areas from large image collections usually process them all at once and only produce disconnected descriptions of image subsets, which typically correspond to major landmarks.
In contrast, we propose a framework that lets us take advantage of the available meta-data to build a single, consistent description from these potentially disconnected descriptions. Furthermore, this description can be incrementally updated and enriched as new images become available. We demonstrate the power of our approach by building large-scale reconstructions using images of Lausanne and Prague.

The calibration data has been used to learn a short binary descriptor in LDAHash: Improved matching with smaller descriptors .

The dense reconstruction of the scenes we calibrated here can be found on the Efficient Large Scale Multi-View Stereo for Ultra High Resolution Image Sets web page.

This work was supported in part by Nokia Research Center.



Results | Data | Software | References | Contact

Results


Prague

Each calibrated image cluster is shown in a different color. The colored points correcpond to the projection of the cluster 3D points onto the map. Green lines indicate the 2D building footprints which are available on openstreetmap .

position of the calibrated clusters using geo-tags only our final cluster alignment
click to enlarge click to enlarge

3D rendering of the Prague dataset.




Lausanne


Each calibrated image cluster is shown in a different color. The colored points correcpond to the projection of the cluster 3D points onto the map. Green lines indicate the 2D building footprints which are available on openstreetmap .

position of the calibrated clusters using geo-tags only our final cluster alignment
click to enlarge click to enlarge

3D rendering of the Lausanne dataset.

Dense reconstruction of the Lausanne dataset using our work on Efficient Large Scale Multi-View Stereo for Ultra High Resolution Image Sets .




Berlin


3D rendering of the Berlin dataset.


Data

We will be sharing some of the data sets here in future. Stay tuned.


Software

We will be sharing our software here in future. Stay tuned.


References


Main Reference


Dynamic and Scalable Large Scale Image Reconstruction

C. Strecha, T. Pylvanainen, P. Fua
CVPR 2010
pdf |

Related References


LDAHash: Improved matching with smaller descriptors

Christoph Strecha, Alex M. Bronstein, Michael M. Bronstein, Pascal Fua
IEEE Transactions on Pattern Analysis and Machine Intelligence
Under Review
Submitted August 2010


LDAHash: Improved matching with smaller descriptors

Christoph Strecha, Alex M. Bronstein, Michael M. Bronstein, Pascal Fua
Techical Report
website | pdf |


Efficient Large Scale Multi-View Stereo for Ultra High Resolution Image Sets

Engin Tola, Christoph Strecha, Pascal Fua
Machine Vision and Applications
Under Review
Submitted September 2010
website



Contact

Christoph Strecha [URL] [e-mail]
Timo Pylvanainen [e-mail]
Pascal Fua [URL] [e-mail]


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Last update : 06 October 2010 11:13:35