非常有效、高准确率的人脸对齐方法，“显式形状回归”。通过训练数据最小化对齐错误函数，学习一个向量回归函数直接推断整个面部形状（一个特征点集合）-Very efficient and highly accurate face alignment method, explicit shape regression . Through the training data minimization alignment error function, learning a vector regressi