Composition of mobile phone face-scanning payment system

The invention relates to a composition of a mobile phone face-scanning payment system in the field of image processing. The composition of the mobile phone face-scanning payment system is characterized in that in a payment and paid information interaction step, a mobile phone receives payment information from a POS machine or a network through wireless Wi-Fi or a network, and automatically sends paid information; in a card holder face image taking step, the mobile phone or the camera of the POS machine takes out the face image of the card holder; in a face-scanning payment code generation step, the five-organ position information in stochastic distribution of the face-scanning image is converted into an adaptive feature vector of a probability measure distance space, the adaptive feature vector is numerically processed through a membership function according to a method of human intervention, and then, a face-scanning payment code is obtained through an adaptive feature vector learning method; and in a code a