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dc.contributor.authorNunziati, Walteren_US
dc.contributor.authorAlon, Jonathanen_US
dc.contributor.authorSclaroff, Stanen_US
dc.contributor.authorDel Bimbo, Albertoen_US
dc.date.accessioned2011-10-20T05:22:56Z
dc.date.available2011-10-20T05:22:56Z
dc.date.issued2005-05-19en_US
dc.identifier.urihttps://hdl.handle.net/2144/1843
dc.description.abstractWe introduce a method for recovering the spatial and temporal alignment between two or more views of objects moving over a ground plane. Existing approaches either assume that the streams are globally synchronized, so that only solving the spatial alignment is needed, or that the temporal misalignment is small enough so that exhaustive search can be performed. In contrast, our approach can recover both the spatial and temporal alignment. We compute for each trajectory a number of interesting segments, and we use their description to form putative matches between trajectories. Each pair of corresponding interesting segments induces a temporal alignment, and defines an interval of common support across two views of an object that is used to recover the spatial alignment. Interesting segments and their descriptors are defined using algebraic projective invariants measured along the trajectories. Similarity between interesting segments is computed taking into account the statistics of such invariants. Candidate alignment parameters are verified checking the consistency, in terms of the symmetric transfer error, of all the putative pairs of corresponding interesting segments. Experiments are conducted with two different sets of data, one with two views of an outdoor scene featuring moving people and cars, and one with four views of a laboratory sequence featuring moving radio-controlled cars.en_US
dc.language.isoen_USen_US
dc.publisherBoston University Computer Science Departmenten_US
dc.relation.ispartofseriesBUCS Technical Reports;BUCS-TR-2005-017en_US
dc.titleView Registration Using Interesting Segments of Planar Trajectoriesen_US
dc.typeTechnical Reporten_US


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