A REAL-TIME TRACKING SYSTEM COMBINING TEMPLATE-BASED AND FEATURE-BASED APPROACHES
Alexander Ladikos, Selim Benhimane, Nassir Navab · 2007
In this paper we propose a complete real-time model-based tracking system for piecewise-planar objects which combines template-based and feature-based approaches. Our contributions are an extension to the ESM algorithm (Benhimane and Malis, 2004) used for template-based tracking and the formulation of a feature-based tracking approach, which is specifically tailored for use in a real-time setting. In order to cope with highly dynamic scenarios, such as illumination changes, partial occlusions and fast object movement, the system adaptively switches between the template-based tracking, the feature-based tracking and a global initialization phase. Our tracking system achieves real-time performance by applying a coarse-to-fine optimization approach and includes means to detect a loss of track.