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Detecting carried objectsfrom Video Sequences

Dima DamenComputer Vision Group

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Detecting carried objects from Silhouettes

I. Haritaoglu, R. Cutler, D. Harwood, and L. S. Davis. Backpack: detection ofpeople carrying objects using silhouettes . In Proc. Int. Conf. on ComputerVision (ICCV) , volume 1, pages 102–107, 1999.

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Haritaoglu’s work

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Proposed Method

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Camera-Specific General Temporal Templates

Swiss Federal Institute of Technology (EPFL)

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Camera-Specific General Temporal Templates

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Selecting General Template

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Proposed Method

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Proposed Method

TemporalTemplate

CameraTemplate

Protruding(Person,Model)

ConnectedRegions

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Introducing Priors and Continuity

TemporalTemplate Best Match ProtrudingRegions

Prior Map

MRF Detection

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Another Example

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Dataset

PETS2006

Cam1 Cam2 Cam3 Cam4

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Dataset

PETS2006106 individually tracked people

Groups discardedTracks < 10 frames discarded

83 GT bags

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Dataset

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Results

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Introducing priors

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Results

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Thank you ☺

Contact Details:Contact Details:DimaDima DamenDamenComputer Vision GroupComputer Vision GroupUniversity of Leeds, UKUniversity of Leeds, UKdima@comp.leeds.ac.ukdima@comp.leeds.ac.ukhttp:// http:// www.comp.leeds.ac.uk/dimawww.comp.leeds.ac.uk/dima