Thread:Talk:CAPTCHA/MotionCAPTCHA

Take a look at the interesting idea MotionCAPTCHA.

I'm not sure that it's ready to use (at least it should work on the server side), but I think it is possible to use this technology to combat bots.

I think to successfully implement is necessary:
 * Generator pictures (order to prevent reuse of a response)
 * Analyzer entropy (it may be possible to find a filter's formula to separate a human entropy from a computer)
 * Maybe something else, it is necessary expert opinion and brainstorming