Patent attributes
A human challenge can be presented in an augmented reality user interface. A user can use a camera of a smart device to capture a video stream of the user's surroundings, and the smart device can superimpose a representation of an object on the image or video stream being captured by the smart device. The smart device can display in the user interface the image or video stream and the object superimposed thereon. The user will be prompted to perform a task with respect to one or more of these augmented reality objects displayed in the user interface. If the user properly performs the task, e.g., selects the correct augmented reality objects, the application will validate the user as a person.