NuCaptcha is launching today with the hopes of disrupting the existing Captcha space. The platform uses video to determine if people are really human, not machines.

NuCaptcha's video animation Captcha technology claim to be both easy to read and secure, with animation that makes the captcha far easier for humans to solve. In addition, the NuCaptcha Platform uses behavioral intelligence to deliver very easy Captchas to legitimate users and increasingly difficult Captchas to attackers.

Read More:
http://techcrunch.com/2010/06/30/nucaptchas-technology-uses-video-to-decipher-between-humans-and-robots/