识别刚性物体：

  ● 方向梯度直方图

  ● 支持向量机

识别非刚性物体：

  ● 目标检测算法

无人驾驶系统中对人物判别的算法步骤如下图：

Identify rigid objects：

  ● Histogram of Oriented Gradient (HOG)

  ● Support Vector Machine (SVM)

Identify non-rigid objects：

  ● Deformable Part Model (DPM)

The arithmetic steps of character discrimination in automatic driving system are as follows: