Balancing usability and security in a video CAPTCHA.
Kurt Alfred KlueverRichard ZanibbiPublished in: SOUPS (2009)
Keyphrases
- video data
- video sequences
- user authentication
- multimedia
- real time
- security requirements
- video streams
- access control
- security problems
- user experience
- video content
- video images
- information security
- security issues
- security mechanisms
- video database
- video analysis
- video surveillance
- intrusion detection
- spatial and temporal
- video frames
- real time video
- online video
- video processing
- security policies
- video clips
- human activities
- energy consumption
- feature vectors
- computer vision