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In this paper, we provide a novel algorithm for building real time 3D virtual facial animation of avatar by drawing facial expression features of real characters. This algorithm first (automatically) labels the feature points of user's facial imagines drew from camera. Then sequentially estimates the emotional state of user's face expressions by Hidden Markov Model. At last construct the avatar's...
For the limited application and shortcoming of FCM (Fuzzy C-Means) clustering algorithm, an improved automatic FCM clustering algorithm is put forward. First, the fuzzy equivalent matrix is achieved by fuzzier the standard uniform data sets; then, the objective function of the improved automatic FCM clustering algorithm is optimized by the amendment of membership function and distance measuring function;...
Sequential Minimal Optimization (SMO) algorithm is very effective when solving large-scale support vector machine (SVM). The existing algorithms need to judge which quadrant the 4 Lagrange multipliers lie in, complicating its implementation. In addition, the existing algorithms all assume that the kernel functions are positive definite or positive semidefinite, limiting their applications. Having...
Ensemble of metamodels is an effective way to overcome the deficiency of stand-alone metamodel. A new ensemble technique with Recursive arithmetic average is proposed in this paper. The presented technique has been evaluated using four benchmark problems, and several commonly used criteria for evaluation of prediction error are adopted to examine the ensemble technique. The results showed that the...
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