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This paper proposes a combined approach for robust face recognition from low resolution images captured by a low-budget commercial depth camera. The low resolution of the facial region of interest is compensated via oversampling techniques and efficient trimming algorithms for the generation of an accurate 3D facial model. Two state of the art algorithms for geometric feature extraction are then utilized,...
This paper presents a novel probabilistic approach for augmenting the performance of a 3D face recognition system with information from continuous facial soft biometric traits. In particular, by estimating the distribution of the noise induced during the measurement of one or more soft biometric traits, the recognition score for a genuine user can be efficiently modelled as a conditional matching...
This paper proposes a novel activity-related authentication method for ambient intelligence environments, based on Spherical Harmonics Analysis (SHA). The approach is based on the representation of the user's behavioural response with an Activity Surface (AS), while performing a regular office activity. Multi-referenced Spherical Harmonics Analysis has been utilized for extracting the corresponding...
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