Dans cet article, nous prosposons une approche qui combine les méthodes statistiques avancées et la flexibilité des approches interactives manuelles en clustering visuel. Nous présentons l interface Semi-Supervised Visual Clustering (SSVC). Sa contribution principale est l apprentissage d une metrique de projection optimale pour la visualisation en coordonnées en étoiles ainsi que pour l extension 3D que nous avons développée. La métrique de distance de projection est apprise à partir des retours de l utilisateur soit en termes de similarité/dissimilarité entre les items, soit par l annotation directe. L interface SSVC permet, de plus, une utilisation hybride dans laquelle un ensemble de paramètres sont manuellement fixés par l utilisateur tandis que les autres paramètres sont determines par un algorithme de distance optimale.
Clustering Visuel Semi-supervisé pour des Systèmes en Coordonnées en Étoiles 3D
| Loïc Lecerf, Boris Chidlovskii |
| 8èmes journées francophones "Extraction et Gestion des Connaissances" EGC, Nice, France, 29janvier au 1er février, 2008. |
The research we conduct on expressive visual representations is applicable to visual search, object detection, image classification and the automatic extraction of 3D human poses and shapes that can be used for human behavior understanding and prediction, human-robot interaction or even avatar animation. We also extract 3D information from images that can be used for intelligent robot navigation, augmented reality and the 3D reconstruction of objects, buildings or even entire cities.
Our work covers the spectrum from unsupervised to supervised approaches, and from very deep architectures to very compact ones. We’re excited about the promise of big data to bring big performance gains to our algorithms but also passionate about the challenge of working in data-scarce and low-power scenarios.
Furthermore, we believe that a modern computer vision system needs to be able to continuously adapt itself to its environment and to improve itself via lifelong learning. Our driving goal is to use our research to deliver embodied intelligence to our users in robotics, autonomous driving, via phone cameras and any other visual means to reach people wherever they may be.
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