Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/7207
Title: Context-based trajectory descriptor for human activity profiling
Authors: Eduardo José Pereira
Lucian Ciobanu
Jaime Cardoso
Issue Date: 2014
Abstract: The increasing demand for human activity analysis on surveillance scenarios has been provoking the emerging of new features and concepts that could help to identify the activities of interest. In this paper, we present a context-based descriptor to identify individual profiles. It accounts with a multi-scale histogram representation of position-based and attention-based features that follow a key-point trajectory sampling. The notion of profile is expressed by a new semantic concept introduced as an adjective for action recognition. We also identify a very rich dataset, in terms of intensity and variability of human activity, and extended it by manual annotation to validate the introduced concept of profile and test the descriptor's discriminative power. High rates of recognition were achieved. © 2014 IEEE.
URI: http://repositorio.inesctec.pt/handle/123456789/7207
http://dx.doi.org/10.1109/smc.2014.6974283
metadata.dc.type: conferenceObject
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