Recognition Method of Single-hand Static Sign Words in CSL Based on Evidence Theory
Pingping Xu · Jisuanji fangzhen · 2008
Static singe-hand sign word is an important component in Chinese sign library, which is mainly expressed by hand pose and the relative position between hand and body. With characteristics of this kind word, a recognition method based on the D-S evidence theory was introduced: hand pose information was captured by the dataglove CAS_Glove and the position information between hand and body was calculated out by fusing sensing of vision and elbow sensor; after partitioning of fuzzy feature space, the multi-feature matching results were fused by D-S evidence theory. In order to reduce the calculation complexity and enhance the real-time property, the Dempster rule was simplified under appropriate conditions, and the rationality of this simplification was demonstrated in theory. In experiments, the validity of this method was confirmed comparatively.