| 摘要 |
A CAPTCHA challenge tool for determining if a user of a computer is a human or an automated program. The tool presents a set of images. At least a portion of the set of images suggests a chronological sequence when organized correctly. The tool receives a suggested order from the user of the computer. If the suggested order matches the correct order, the tool assumes that the user is a human, if the suggested order does not match the correct order, the tool assumes the user is an automated program. |
