Hanzi Wang and David Suter
Department of Electrical and Computer Systems Engineering
Monash University, Clayton Vic. 3800, Australia
Computer vision tasks often require the robust fit of a model to some
data. In a robust fit, two major steps should be taken: i) robustly estimate
the parameters of a model, and ii) differentiate inliers from outliers.
We propose a new estimator called Adaptive-Scale Residual Consensus (ASRC).
ASRC scores a model based on both the residuals of inliers and the corresponding
scale estimate determined by those inliers. ASRC is very robust to multiple-structural
data containing a high percentage of outliers. Compared with RANSAC, ASRC
requires no pre-determined inlier threshold as it can simultaneously estimate
the parameters of a model and the scale of inliers belonging to that model.
Experiments show that ASRC has better robustness to heavily corrupted data
than other robust methods. Our experiments address two important computer
vision tasks: range image segmentation and fundamental matrix calculation.
However, the range of potential applications is much broader than these.