| 摘要 |
A system and computer-implemented method for determining whether a user of a computer system is a human or a computer program that includes determining whether a camera device is connected with the computer system, requesting the user to perform an action and reviewing the recorded image and validating whether the requested action has been performed by the user, based on one or more of a determined level of confidence that the user is a human, and any detected error in the recorded image. The recorded image is accepted or rejected based on policy settings of a service provider in view of the one or more of the determined confidence level and any detected error in the recorded image, wherein accepting the recorded image corresponds to a determination that the user is a human.
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