Characteristic code of image acquisition in colleges and universities. Jiangxi Normal University of Science and Technology campus image collection feature code is an image feature code used by the school to identify students, which can help school administrators manage students' identity information more effectively and better control the school security system. This feature code consists of students' photos, ID numbers, student numbers and other information, which can identify students' identities more accurately. In addition, the school can also use this feature code to detect students' attendance, track students' behavior and ensure the safety of the school.