Title
Robust Bundle Adjustment Revisited
Abstract
In this work we address robust estimation in the bundle adjustment procedure. Typically, bundle adjustment is not solved via a generic optimization algorithm, but usually cast as a nonlinear least-squares problem instance. In order to handle gross outliers in bundle adjustment the least-squares formulation must be robustified. We investigate several approaches to make least-squares objectives robust while retaining the least-squares nature to use existing efficient solvers. In particular, we highlight a method based on lifting a robust cost function into a higher dimensional representation, and show how the lifted formulation is efficiently implemented in a Gauss-Newton framework. In our experiments the proposed lifting-based approach almost always yields the best (i.e. lowest) objectives.
Year
DOI
Venue
2014
10.1007/978-3-319-10602-1_50
COMPUTER VISION - ECCV 2014, PT V
Keywords
Field
DocType
Bundle adjustment, nonlinear least-squares optimization, robust cost function
Mathematical optimization,Nonlinear system,Bundle adjustment,Computer science,Outlier,Optimization algorithm,Almost surely,Nonlinear least squares optimization
Conference
Volume
ISSN
Citations 
8693
0302-9743
15
PageRank 
References 
Authors
0.61
13
1
Name
Order
Citations
PageRank
Christopher Zach1145784.01