False Discovery Rate Approach to Unsupervised Image Change Detection

Vladimir A. Krylov (1) , Gabriele Moser (1) , Sebastiano B. Serpico (1) , Josiane Zerubia (2)

1 DITEN - Dipartimento di Ingegneria Navale, Elettrica, Elettronica e delle Telecomunicazioni / Dept. of Electrical, Electronic, Telecommunications Engineering and Naval Architecture
2 AYIN - Models of spatio-temporal structure for high-resolution image processing

In this paper we address the problem of unsuper-vised change detection on two or more coregistered images of the same object or scene at several time instants. We propose a novel empirical-Bayesian approach that is based on a false discovery rate formulation for statistical inference on local patch-based samples. This alternative error metric allows to efficiently adjust the family-wise error rate in case of the considered large-scale testing problem. The designed change detector operates in an un-supervised manner under the assumption of the limited amount of changes in the analyzed imagery. The detection is based in the use of various statistical features, which enable the detector to address application-specific detection problems provided an appropriate ad hoc feature choice. In particular, we demonstrate the use of the rank-based statistics: Wilcoxon and Cramér-von Mises for image pairs, and multisample Levene statistic for short image sequences. The experiments with remotely sensed radar, dermatological, and still camera surveillance imagery demonstrate accurate performance and flexibility of the proposed method.

Mots clés: change detection; statistical hypothesis testing; false discovery rate; synthetic aperture radar images; dermatological images; still camera images

Domaines: Traitement des images [eess.IV]

Vladimir A. Krylov, Gabriele Moser, Sebastiano B. Serpico, Josiane Zerubia. False Discovery Rate Approach to Unsupervised Image Change Detection. IEEE Transactions on Image Processing, 2016, 25 (10), pp.4704-4718. ⟨10.1109/TIP.2016.2593340⟩. ⟨hal-01347028⟩