3595 search results - page 5 / 719 » Image Recognition CAPTCHAs |
ICPR
2006
IEEE
14 years 6 months ago
2006
IEEE
It is a well documented fact that, for human readers, familiar text is more legible than unfamiliar text. Current-generation computer vision systems also are able to exploit some ...
CCS
2007
ACM
13 years 11 months ago
2007
ACM
We present Asirra (Figure 1), a CAPTCHA that asks users to identify cats out of a set of 12 photographs of both cats and dogs. Asirra is easy for users; user studies indicate it c...
ICPR
2006
IEEE
13 years 11 months ago
2006
IEEE
SOUPS
2009
ACM
14 years 1 days ago
2009
ACM
The ASIRRA CAPTCHA [6], recently proposed at ACM CCS 2007, relies on the problem of distinguishing images of cats and dogs (a task that humans are very good at). The security of AS...
IDA
2010
Springer
13 years 10 months ago
2010
Springer
: Rock art, human-made markings on stone, is an important cultural and the earliest expression of abstract thinking. While there are tens of millions of photographs of rock art in ...