Multi-layer CAPTCHA Based on Chinese Character Deformation.
Tingting WangJørgen BøeghPublished in: ISCTCS (2013)
Keyphrases
- multi layer
- chinese characters
- chinese character recognition
- hand written
- character recognition
- feed forward neural networks
- error back propagation
- neural nets
- neural network
- font recognition
- chinese language
- co occurrence
- single layer
- multiple layers
- feature selection
- real time
- group sparse coding
- world wide
- object recognition
- native speakers