Anti-SIFT Images Based CAPTCHA Using Versatile Characters.
Chen-Chiung HsiehZong-Yu WuPublished in: ICISA (2013)
Keyphrases
- image features
- object recognition
- image database
- image data
- image retrieval
- input image
- three dimensional
- image analysis
- image matching
- image classification
- keypoints
- segmentation method
- scene images
- license plate
- image set
- similarity measure
- image representation
- edge detection
- test images
- ground truth
- sift descriptors
- scale invariant feature transform
- segmentation algorithm
- image regions
- region of interest
- lighting conditions
- image structure
- gabor filters
- sift features