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When one is speaking, lips change regularly. Therefore, Lip contour extraction is very meaningful. In this paper, for lip color images, this paper extracts lip contour by means of the RGB-based improved region growing algorithm. Through RGB three components, the relationship between color from and adjacent pixels is calculated. According to certain rules, seed pixels are automatically selected, and...
Touch interaction has quickly become the de-facto means of interacting with handheld devices due to its perceived attractiveness and low hardware cost. This study proposes a strategy for identifying users based on touch dynamics. Users' touch behavior is monitored and several unique features are extracted including left versus right hand dominance, one-handed versus bimanual operation, stroke size,...
A new chaotic system, which is three-mode truncation of Couette-Taylor flow, is discussed. The globally exponentially attractive set and positive invariant set of the chaotic system are studied via Lyapunov function. Feedback control and adaptive control methods are used to achieve the globally exponentially synchronization. Numerical simulation results show the effectiveness of these methods.
The output of photovoltaic array has several corresponding local peaks of power-voltage curve with the existence of the shadow, In order to make the photovoltaic arrays continue to work in the maximum power point, need to create conditions for the model of the PV array, On the basis of the model, there are having some further detailed analysis and research about the characters of the local photovoltaic...
According to the IM system's functional requirements, completed the overall design of IM system server, which has good function of communication and plug-in management. Propose the user login server optimized design, build a complete user login process, and design custom protocol packet structure. As well as design and implement the optimization methods of login server by using software. Finally,...
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