1. A figure recognition method in a method for a biometric figure recognition system with a watch list to automatically detect, track, and recognize a face image of a figure, the method comprising: a) remotely collecting 2D data in a monitoring area by using an optical sensor; b) detecting faces and face features of persons in the monitoring area, and determining positions thereof; c) finding a person and estimating the person's features coordinate; d) tracking the detected face and face features in a subsequent frame during a video sequence; e) estimating image quality of each detected person according to parameters of focus, brightness, contrast, and glasses wearing state; f) controlling recognition methods stored in a repository by considering face image quality values for the respective detected persons; g) forming biometric features of each detected person by using a selected recognition method; h) comparing each detected person and a template set stored in a database by using the formed biometric features to identify a figure according to a watch list; and i) registering a new user, and performing an automatic recognition method adaptation process by considering the watch list.