Great idea but I don't think it's the solution to the captcha problem. There's a lot of visual noise for a person to analyse and I found it considerably harder

Great idea but I don't think it's the solution to the captcha problem. There's a lot of visual noise for a person to analyse and I found it considerably harder than reCaptcha types. However that may be a bonus for deterring human solved captcha à la deathbycaptcha.com