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Outlier detection in video sequences under affine projection
Conference paper   Open access

Outlier detection in video sequences under affine projection

D.Q. Huynh and A. Heyden
Proceedings of the 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. CVPR 2001, Vol.1, pp.I-695-I-701
IEEE
2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (Kauai, Hawaii, 08/12/2001–14/12/2001)
2001
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Abstract

A novel robust method for outlier detection in structure and motion recovery for affine cameras is presented. It is an extension of the well-known Tomasi-Kanade factorization technique (C. Tomasi T. Kanade, 1992) designed to handle outliers. It can also be seen as an importation of the LMedS technique or RANSAC into the factorization framework. Based on the computation of distances between subspaces, it relates closely with the subspace-based factorization methods for the perspective case presented by G. Sparr (1996) and others and the subspace-based-factorization for affine cameras with missing data by D. Jacobs (1997). Key features of the method presented are its ability to compare different subspaces and the complete automation of the detection and elimination of outliers. Its performance and effectiveness are demonstrated by experiments involving simulated and real video sequences.

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