Sebastiano Vascon

Learn More
A standing conversational group (also known as F-formation) occurs when two or more people sustain a social interaction, such as chatting at a cocktail party. Detecting such interactions in images or videos is of fundamental importance in many contexts, like surveillance, social signal processing, social robotics or activity classification. This paper(More)
Many Object recognition techniques perform some flavour of point pattern matching between a model and a scene. Such points are usually selected through a feature detection algorithm that is robust to a class of image transformations and a suitable descriptor is computed over them in order to get a reliable matching. Moreover, some approaches take an(More)
Detecting groups is becoming of relevant interest as an important step for scene (and especially activity) understanding. Differently fromwhat is commonly assumed in the computer vision community, different types of groups do exist, and among these, standing conversational groups (a.k.a. F-formations) play an important role. An F-formation is a common type(More)
In this paper, we propose an effective method for emergent leader detection in meeting environments which is based on nonverbal visual features. Identifying emergent leader is an important issue for organizations. It is also a well-investigated topic in social psychology while a relatively new problem in social signal processing (SSP). The effectiveness of(More)
We present an unsupervised approach based on the Dominant Sets framework to automatically segment the white matter fibers into bundles. This framework, rooted in the Game Theory, allows for the automatic determination of the number of clusters from the data itself, without any prior assumption. The clustered bundles are a key information for the generation(More)
Mapping of structural and functional connectivity may provide deeper understanding of brain function and disfunction. Diffusion Magnetic Resonance Imaging (DMRI) is a powerful technique to non-invasively delineate white matter (WM) tracts and to obtain a three-dimensional description of the structural architecture of the brain. However, DMRI tractography(More)
Gephyrin is a key scaffold protein mediating the anchoring of GABAA receptors at inhibitory synapses. Here, we exploited superresolution techniques combined with proximity-based clustering analysis and model simulations to investigate the single-molecule gephyrin reorganization during plasticity of inhibitory synapses in mouse hippocampal cultured neurons.(More)
Francesca Pennacchietti, Sebastiano Vascon, Alessio Del Bue, Enrica Maria Petrini, Andrea Barberis, Alberto Diaspro, Francesca Cella Zanacchi 1 Nanoscopy, Istituto Italiano di Tecnologia, Via Morego 30, Genoa, Italy 2 Pattern Analysis and Computer Vision, Istituto Italiano di Tecnologia, Via Morego 30, Genoa, Italy 3 Neuroscience and Brain Technologies,(More)
Aim of this study was to evaluate by Micro-CT the structure of cancellous bone samples collected from historical human vertebrae of subjects affected by tuberculosis. Tuberculosis (TB) is a potentially fatal contagious disease most often caused by Mycobacterium tuberculosis but also by M. bovis and, although seldom, by other Mycobacterium species (M.(More)