An algorithm for polygonal approximation based on iterative point elimination
Pattern Recognition Letters
Movement Phase in Signs and Co-Speech Gestures, and Their Transcriptions by Human Coders
Proceedings of the International Gesture Workshop on Gesture and Sign Language in Human-Computer Interaction
Models with Biological Relevance to Control Anthropomorphic Limbs: A Survey
GW '01 Revised Papers from the International Gesture Workshop on Gesture and Sign Languages in Human-Computer Interaction
Reduced-search dynamic programming for approximation of polygonal curves
Pattern Recognition Letters
ISDA '06 Proceedings of the Sixth International Conference on Intelligent Systems Design and Applications - Volume 01
Speeding up simplification of polygonal curves using nested approximations
Pattern Analysis & Applications
Captured motion data processing for real time synthesis of sign language
GW'05 Proceedings of the 6th international conference on Gesture in Human-Computer Interaction and Simulation
Adaptive sampling of motion trajectories for discrete task-based analysis and synthesis of gesture
GW'05 Proceedings of the 6th international conference on Gesture in Human-Computer Interaction and Simulation
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This paper describes a new approach to analyze hand gestures, based on an experimental approximation of the shape and kinematics of compressed arm trajectories. The motivation of such a model is on the one hand the reduction of the gesture data, and on the other hand the possibility to segment gestures into meaningful units, yielding to an analysis tool for gesture coding and synthesis. We show that the measures of the inverse of the distance between adaptive samples and velocity estimated at these points are respectively correlated to the instantaneous curvature and tangential velocity directly computed on motion capture data. Based on these correlation results, we propose a newway to automatically segment hand gestures. We show also that this approach can be applied to a global analysis / synthesis framework, useful for automatic animation of virtual characters performing sign langue gestures.