An Efficient Ellipse-Shaped Blobs Detection Algorithm for Breaking Facebook CAPTCHA.
Peipeng LiuJinqiao ShiLihong WangLi GuoPublished in: ISCTCS (2012)
Keyphrases
- detection algorithm
- motion detection
- detection accuracy
- detection method
- detection rate
- social networks
- social media
- corner detection
- feature detection
- vehicle detection
- boundary detection
- harris corner
- fall detection
- social networking
- moving objects
- image processing
- online social networks
- feature points
- social networking sites
- multiscale
- machine learning