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PRL
2011

Temporal synchronization of non-overlapping videos using known object motion

8 years 1 months ago
Temporal synchronization of non-overlapping videos using known object motion
This paper presents a robust technique for temporally aligning multiple video sequences that have no spatial overlap between their fields of view. It is assumed that (i) a moving target with known trajectory is viewed by all cameras at non-overlapping periods in time, (ii) the target trajectory is estimated with a limited error at a constant sampling rate, and (iii) the sequences are recorded by stationary cameras with constant frame rates and fixed intrinsic and extrinsic parameters. The proposed approach reduces the problem of synchronizing N non-overlapping sequences to the problem of robustly estimating a single line from a set of appropriately-generated points in RN+1 . This line describes all temporal relations between the N sequences and the moving target. Our technique can handle arbitrarily-large misalignments between the sequences and does not require any a priori information about their temporal relations. Experimental results with real-world and synthetic sequences demon...
Darlan N. Brito, Flávio L. C. Pádua,
Added 14 May 2011
Updated 14 May 2011
Type Journal
Year 2011
Where PRL
Authors Darlan N. Brito, Flávio L. C. Pádua, Guilherme A. S. Pereira, Rodrigo L. Carceroni
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