Skeletonization of Deformed CAPTCHAs Using Pixel Depth Approach.
Jingsong CuiLu LiuGang DuYing WangQianqi GuanPublished in: J. Multim. (2011)
Keyphrases
- single image
- depth map
- imaging sensors
- gray level images
- depth information
- dense depth maps
- input image
- pixel values
- computer programs
- high quality
- depth discontinuities
- image pixels
- image derivatives
- binary images
- morphological operations
- data sets
- depth cues
- distance transformation
- gray level
- optical flow
- view interpolation
- skeleton extraction
- image processing