Henrik Stewénius
My current research interests are in scalable computer vision in general an in particular in
image matching, with applications in
Search By Image and Goggle Goggles.
The UKY experimental data along with a more complete set of pdfs can be found at:
www.vis.uky.edu/~stewe/.
Some old material can be found at my old homepage in
Lund.
Research Areas
Authored Publications
Google Publications
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Size Matters: Exhaustive Geometric Verification for Image Retrieval
Steinar H. Gunderson
Julien Pilet
12th European Conference on Computer Vision (ECCV), Springer (2012), pp. 674-687
Preview abstract
The overreaching goals in large-scale image retrieval are bigger,
better and cheaper. For systems based on local features we show
how to get both efficient geometric verification of every match
and unprecedented speed for the low sparsity situation.
Large-scale systems based on quantized local
features usually process the index one term at a time,
forcing two separate scoring steps: First, a scoring step
to find candidates with enough matches, and then a geometric
verification step where a subset of the candidates are checked.
Our method searches through the index a document at a time,
verifying the geometry of every candidate in a single pass.
We study the behavior of several algorithms with respect to index density---a
key element for large-scale databases. In order to further improve the
efficiency we also introduce a new
new data structure, called the counting min-tree, which outperforms other approaches
when working with low database density, a necessary condition for very large-scale systems.
We demonstrate the effectiveness of our approach with a proof of concept
system that can match an
image against a database of more than 90~billion images in just a few seconds.
View details
Stereo Matching with Color-weighted Correlation, Hierarchical Belief Propagation and Occlusion Handling
Preview
Qingxiong Yang
Liang Wang
Ruigang Yang
David Nistér
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI) (2008)
Detailed Real-Time Urban 3D Reconstruction From Video
M. Pollefeys
D. Nistér
J.-M. Frahm
A. Akbarzadeh
P. Mordohai
B. Clipp
C. Engels
D. Gallup
S.-J. Kim
P. Merrell
C. Salmi
S. Sinha
B. Talton
L. Wang
Q. Yang
R. Yang
G. Welch
H. Towles
IJCV, vol. 78 (2008), pp. 143 - 167
A minimal solution for relative pose with unknown focal length
F. Kahl
D. Nistér
F. Schaffalitzky
Image and Vision Computing, vol. 26 (2008), pp. 871 - 877
Binomial Mitotic Segregation of MYCN-Carrying Double Minutes in Neuroblastoma Illustrates the Role of Randomness in Oncogene Amplification
G. Lundberg
A. Rosengren
Ulf Håkanson
Y. Jin
Y. Stewénius
Sven Påhlman
D. Gisselsson
PLoS ONE, vol. 3 (2008), e3099
Using Galois Theory to Prove that Structure from Motion Algorithms are Optimal
A Nine-point Algorithm for Estimating Para-Catadioptric Fundamental Matrices
An Efficient Minimal Solution for Infinitesimal Camera Motion
A Binning Scheme for Fast Hard Drive Based Image Search
Real-Time Video-Based Reconstruction of Urban Environments
P. Mordohai
J.-M. Frahm
A. Akbarzadeh
B. Clipp
C. Engels
D. Gallup
P. Merrell
C. Salmi
S. Sinha
B. Talton
L. Wang
Q. Yang
H. Towles
G. Welch
R. Yang
M. Pollefeys
D. Nistér
3D Virtual Reconstruction and Visualization of Complex Architectures (2007)
Structure from Motion with Missing Data is NP-Hard
David Nister
Fredrik Kahl
IEEE International Conference on Computer Vision (ICCV) (2007)
Towards Urban 3D Reconstruction From Video
A. Akbarzadeh
J.-M. Frahm
P. Mordohai
B. Clipp
C. Engels
D. Gallup
P. Merrell
M. Phelps
S. Sinha
B. Talton
L. Wang
Q. Yang
R. Yang
G. Welch
H. Towles
D. Nisté
M. Pollefeys
Third International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT) (2006)
Bundle Adjustment Rules
Recent Developments on Direct Relative Orientation
C. Engels
D. Nistér
ISPRS Journal of Photogrammetry and Remote Sensing, vol. 60 (2006), pp. 284-294
Stereo Matching with Color-Weighted Correlation, Hierarchical Belief Propagation and Occlusion Handling
Q. Yang
L. Wang
R. Yang
D. Nistér
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) (2006), pp. 2347-2354
Are two rotational flows sufficient to calibrate a smooth non-parametric sensor?
E. Grossmann
E-J Lee
P. Hislop
D. Nistér
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) (2006), pp. 1222-1229
Scalable Recognition with a Vocabulary Tree
D. Nistér
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) (2006), pp. 2161-2168
A Minimal solution to the generalized 3-point pose problem
Solutions to Minimal Generalized Relative Pose Problems
D. Nistér
M. Oskarsson
K. Åström
Workshop on Omnidirectional Vision, Beijing China (2005)
Reconstruction from Planar Motion Image Sequences with Applications for Autonomous Vehicles
M. Oskarsson
K. Åström
Scandinavian Conference on Image Analysis (SCIA), Joensuu, Finland (2005)
Non-Parametric Self-Calibration
D. Nistér
E. Grossmann
IEEE International Conference on Computer Vision (ICCV), Beijing China (2005), pp. 120-127
How Hard is Three-View Triangulation Really?
F. Schaffalitzky
D. Nistér
IEEE International Conference on Computer Vision (ICCV), Beijing China (2005), pp. 686-693
Gröbner Basis Methods for Minimal Problems in Computer Vision
Ph.D. Thesis (2005)
A Minimal Solution for Relative Pose with Unknown Focal Length
F. Kahl
D. Nistér
F. Schaffalitzky
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), San-Diego, USA (2005), pp. 789-794
Camera platforms for localization and map building
M. Oskarsson
K. Åström
Swedish Society for Automatic Image Analysis(SSBA), Uppsala, Sweden (2004)
Structure and Motion Problems for Multiple Rigidly Moving Cameras
K. Åström
European Conference on Computer Vision (ECCV), Prague , Czech Republic (2004), 238ff
Hand-Eye Calibration using Multilinear Constraints
Structure and Motion Problems for Multiple Rigidly Moving Cameras
K. Åström
Proc. 8th Europ. Conf. Comput. Vision, Prague , Czech Republic (2004), 238ff
Studies in Mobile Camera Calibration
Lund University (2003)
Simplified Vehicle Calibration using Multilinear Constraints
Scandinavian Conference on Image Analysis (SCIA), Gothenburg, Sweden (2003)
Automatic calibration of vehicle parameters from visual data
Swedish Society for Automatic Image Analysis(SSAB) (2002)
