警察从他典型的面部特征——额头的疤痕认出了罪犯。
They suggest this indicates that dogs aren sensing emotions from a single feature, but piecing together information from all facial features just as humans do.他们表示,这一点表明狗不是从某个单一的特征来感知情绪,而是像人类一样,将所有面部特征信息整合到一起。
Image based facial feature points extraction.基于照片的人脸特征点提取。