A novel method for learning and recognizing sequential image data is proposed, and promising applications to vision-based human movement analysis are demonstrated. To find more compact representations of high-dimensional silhouette data, we exploit locality preserving projections (LPP) to achieve low-dimensional manifold embedding. Further, we present two kinds of methods to analyze and recognize learned motion manifolds. One is correlation matching based on the Hausdorrf distance, and the other is a probabilistic method using continuous hidden Markov models (HMM). Encouraging results are obtained in two representative experiments in the areas of human activity recognition and gait-based human identification.
Citation:
Liang Wang, David Suter, "Analyzing Human Movements from Silhouettes Using Manifold Learning," avss, pp.7, 2006 IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS'06), 2006