The study deals with the task of two-dimensional linear regression of noisy data. The data is represented by pairs of
coordinates provided by an image-based object detector and can include outliers along with the regular data. As for main
outliers model a stationary clutter is considered, i.e. the coordinates of outliers are close to a fixed but undefined
point. The paper introduces a linear regression method that is robust to extreme, i.e. the number of outliers exceeds
the number of regular data, stationary noise. The proposed method is based on Hough-analysis of input data coordinate
histogram and consists of two sequential stages: estimation of angle and shift parameters. Algorithm based on the
proposed method is used in the automatic vehicle classifier for wheels trajectory localization. The precision of
proposed algorithms and Welsch m-estimator on simulated and real data is investigated. The conducted experiments show
that the algorithms based on the proposed method with the same computational complexity have higher precision of wheels
trajectory linear model regression in the cases of presence of extreme stationary clutter.
Key words:
grobust linear regression, outliers, object detection, automatic vehicle classifier
DOI: 10.31857/S0235009220010059
Cite:
Bocharov D. A.
Metod lineinoi regressii, ustoichivyi k ekstremalnym statsionarnym pomekham
[A linear regression method robust to extreme stationary clutter].
Sensornye sistemy [Sensory systems].
2020.
V. 34(1).
P. 44–56 (in Russian). doi: 10.31857/S0235009220010059
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