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Principal Component Analysis (PCA) is a widely used technology about dimensional reduction. Non-negative Matrix Factorization (NMF), proposed by Lee and Sung, is a new image analysis method. In this paper, PCA and NMF are used to extract facial expression feature, and the recognition results of two methods are compared. We also try to process basic image(More)
Inverted pendulum is a typical multivariable, nonlinear, strong-coupling, instable system. The basic aim of our work was to balance a real pendulum in the position in center of course. For this purpose we used fuzzy logic controller. The fuzzy logic controller designed in the Matlab-Simulink environment. In this paper, the inverted pendulum mathematical(More)
In order to realize collision warning and avoidance, a robust and real-time dynamic vehicle detection and tracking system regardless of occlusion is required for driver assistant system (DAS). In this paper, a novel classify vehicle tracking method is presented for the DAS, which can be applied to general road condition and the tracking stability under(More)
In any <i>k</i>-in-a-row game, the player should always analyze each consecutive sequence in 4 directions, which consists of either the void intersections or the intersections occupied by the same color stones. Although the difficult problem in <i>k</i>-in-a-row game is that any void intersection on board can be placed a stone on, just like Go, however, the(More)
In this paper, we investigated EEG feature in the alcoholics and the controls. Principle component analysis was applied to preprocess the original data to reduce the dimensions of EEG. Wavelet transform decomposed the EEGs into five corresponding frequency bands. Power spectrum was estimated in each band. By comparing the power spectrum of the alcoholics(More)
Many practical engineering problems can be modelled as such a class of hybrid dynamic systems, where N plants are controlled by a central controller in sharing time manner. Event feedback strategy is used as the real-time scheduling policy such that one and only one plant among N plants is chosen to be controlled at any time. In this paper, the asymptotical(More)
The robot soccer game has been proposed as a benchmark problem for the artificial intelligence and robotic researches. Decisionmaking system is the most important part of the robot soccer system. As the environment is dynamic and complex, one of the reinforcement learning (RL) method named FNN-RL is employed in learning the decision-making strategy. The(More)
A method based on wavelet transform and support vector machine (SVM) for detecting text under complex background is proposed. First, the image is decomposed by wavelet, and then the texture characteristic of text is extracted by using SVM on low-frequency approximate sub-space and high-frequency energy sub-space. Combining wavelet transform and SVM not only(More)