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- Title
Social interactions by visual focus of attention in a three-dimensional environment.
- Authors
Bazzani, L.; Cristani, M.; Tosato, D.; Farenzena, M.; Paggetti, G.; Menegaz, G.; Murino, V.
- Abstract
In human behaviour analysis, the visual focus of attention (VFOA) of a person is a very important cue. VFOA detection is difficult, though, especially in a unconstrained and crowded environment, typical of video surveillance scenarios. In this paper, we estimate the VFOA by defining the Subjective View Frustum, which approximates the visual field of a person in a three-dimensional representation of the scene. This opens up to several intriguing behavioural investigations. In particular, we propose the Inter-Relation Pattern Matrix, which suggests possible social interactions between the people present in a scene. Theoretical justifications and experimental results substantiate the validity and the goodness of the analysis performed.
- Subjects
THREE-dimensional display systems; HUMAN behavior research; SURVEILLANCE detection; MATHEMATICAL models; SOCIAL interaction; SECURITY systems
- Publication
Expert Systems, 2013, Vol 30, Issue 2, p115
- ISSN
0266-4720
- Publication type
Article
- DOI
10.1111/j.1468-0394.2012.00622.x