三维人脸识别的经典文章，也是三维人脸表情识别引用极多的文章，被模式识别杂志收录-Texture and shape information fusion for facial expression and facial action unit recognition Keywords: Facial expression recognition Facial Action Unit recognition Discriminant Non-Negative Matrix Factor

Digital signal processing (DSP) algorithms exhibit an increasing need for the e#cient implementation of complex arithmetic operations. The computation of trigonometric functions, coordinate transformations or rotations of complex valued phasors