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Volume: 31 | Article ID: art00017
  DOI :  10.2352/ISSN.2470-1173.2019.7.IRIACV-466  Published OnlineJanuary 2019

An appearance model plays a crucial rule in multi-target tracking. In traditional approaches, the two steps of appearance modeling i.e visual representation and statistically similarity measure are modeled separately. Visual representation is achieved either through hand-crafted features or deep features and statically similarity is measure through a cross entropy loss function. A loss function based on crossentropy (KL-divergence, mutual information) find closely related probability distribution for the targets. However, if the targets have similar visual representation, it ends up mixing the targets. To tackle this problem, we come up with a synergetic appearance model named Single Shot Appearance Model (SSAM) based on Siamese neural network. The network is trained with a contrastive loss function for finding the similarity between different targets in a single shot. The input to the network is two target patches and based on their similarity, a contrastive score is output by the network. The proposed model is evaluated on accumulative dissimilarity metric on three datasets. Quantitatively, promising results are achieved against three baseline methods.

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Mohib Ullah, Habib Ullah, Faouzi Alaya Cheikh, "SINGLE SHOT APPEARANCE MODEL (SSAM) FOR MULTI-TARGET TRACKINGin Proc. IS&T Int’l. Symp. on Electronic Imaging: Intelligent Robotics and Industrial Applications using Computer Vision,  2019,  pp 466-1 - 466-6,

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