科技含量最高的地方就是要在复杂的背景和数千名人群里，自动分辨并定位每张人脸，然后和后台系统储存的数据进行比对，能完整检测，完整的代码，很不错-Where is the highest technology content in a complex background to the crowd and thousands of automatically identify and locate each face, and back-office systems and then compare