What's wrong with the picture taken by the West Power Network Institute showing that there is no face in the picture?

Failed to collect facial information. Biometric identification technology based on facial feature information. The pictures taken by Xidian Power Grid Institute show that there are no faces in the pictures, which belongs to the failure of face information collection. Face recognition is a series of technologies related to faces, which are usually called portrait recognition and face recognition. People are identified by facial feature information, and images or video streams containing faces are collected by cameras to automatically detect and track faces in images.