| 摘要 |
PROBLEM TO BE SOLVED: To facilitate a recovery processing when a collation object comes out of continuous monitoring after log-in to an object device. SOLUTION: A log-in collation processing is executed, by which image information obtained by picking-up the image of collation object by a CMOS camera is collated with a previously registered dictionary to decide whether log-in to PC is permitted or not (S11). After the log-in to PC is permitted, a continuous collation processing without collation with the dictionary is executed in order to continuously monitor that the collation object still exists within the image pickup range of the CMOS camera (S14). When the collation object comes out of the image pickup range of the camera, the continuous collation means executes a register collation processing (S17) for deciding whether the collation object is collated with the dictionary to keep a log-in state or a log-in collation processing (S11) is executed again. The register collation processing (S17) is more simplified than the log-in collation processing (S11). |
