학술논문

An efficient Rao-Blackwellized particle filter for object tracking
Document Type
Conference
Source
IEEE International Conference on Image Processing 2005 Image processing Image Processing, 2005. ICIP 2005. IEEE International Conference on. 2:II-426 2005
Subject
Signal Processing and Analysis
Computing and Processing
Particle filters
Particle tracking
Target tracking
Equations
Hidden Markov models
Clouds
Stochastic processes
Nonlinear filters
Noise robustness
Current measurement
Language
ISSN
1522-4880
2381-8549
Abstract
In this paper we present a technique for the tracking of textured almost planar object. The target is modeled as a noisy planar cloud of points. The tracking is led with an appropriate non linear stochastic filter. The particular system that we devised is conditionally Gaussian and can be efficiently implemented through variance reduction principle known as Rao-Blackwellisation. Our model allows also to melt a correlation measurements with dynamic model estimated from the images. Such a cooperation within a stochastic filtering framework allows the tracker to be robust to occlusions and target's unpredictable changes of speed and direction. We demonstrate the efficiency of the tracker on different types of real world sequences.