包括面积、周长、矩形度、伸长度，一种流形学习算法（很好用），多姿态，多角度，有不同光照,Relief计算分类权重，匹配追踪和正交匹配追踪，基于SVPWM的三电平逆变的matlab仿真。-Including the area, perimeter, rectangular, elongation, A fluid manifold learning algorithm (good use), Much posture, multi-angle, have different light, Reli