Gesture recognition is an important research in the field of human-computer interaction. Hand Gestures are strong variable and flexible, so the gesture recognition has always been an important challenge for the resear...Gesture recognition is an important research in the field of human-computer interaction. Hand Gestures are strong variable and flexible, so the gesture recognition has always been an important challenge for the researchers. In this paper, we first outlined the development of gestures recognition, and different classification of gestures based on different purposes. Then we respectively introduced common methods used in the process of gesture segmentation, feature extraction and recognition. Finally, the gesture recognition was summarized and the studying prospects were given.展开更多
The jet flow with high water head happens very often in hydraulic engineering. In this paper, starting from the viewpoint of random hydraulics, the experimental research work on the problem of percussion action of the...The jet flow with high water head happens very often in hydraulic engineering. In this paper, starting from the viewpoint of random hydraulics, the experimental research work on the problem of percussion action of the jet flow related to the apron slab.Stochastic theory and random time series are employed to analyse the sample function x(t) ,its x(t) and x(t) and their corelations μ on M. The working process of the apron during the variation of flow discharge has been observed and the machanism of failure of apron slab is discussed. The lift force due to the action of jet flow is analysed and the conditions of improving the safety factors of apron slab are presented.展开更多
文摘Gesture recognition is an important research in the field of human-computer interaction. Hand Gestures are strong variable and flexible, so the gesture recognition has always been an important challenge for the researchers. In this paper, we first outlined the development of gestures recognition, and different classification of gestures based on different purposes. Then we respectively introduced common methods used in the process of gesture segmentation, feature extraction and recognition. Finally, the gesture recognition was summarized and the studying prospects were given.
文摘The jet flow with high water head happens very often in hydraulic engineering. In this paper, starting from the viewpoint of random hydraulics, the experimental research work on the problem of percussion action of the jet flow related to the apron slab.Stochastic theory and random time series are employed to analyse the sample function x(t) ,its x(t) and x(t) and their corelations μ on M. The working process of the apron during the variation of flow discharge has been observed and the machanism of failure of apron slab is discussed. The lift force due to the action of jet flow is analysed and the conditions of improving the safety factors of apron slab are presented.
