A computer vision attack on the ARTiFACIAL CAPTCHA.
Qiujie LiPublished in: Multim. Tools Appl. (2015)
Keyphrases
- computer vision
- object recognition
- image understanding
- countermeasures
- pattern recognition
- object detection
- vision system
- camera calibration
- signal processing
- perceptual organization
- pose estimation
- machine learning
- image processing
- image segmentation
- web applications
- computer vision algorithms
- secret key
- shape matching
- video surveillance
- structure from motion
- computer graphics
- action recognition
- face detection
- motion estimation
- face recognition
- video sequences
- learning algorithm
- optical flow
- genetic algorithm