Keyphrases
- scale invariant
- online learning
- natural images
- keypoints
- affine invariant
- scale space
- object class recognition
- scale invariance
- multiscale
- e learning
- image structure
- figure ground separation
- local binary pattern
- texture images
- active learning
- invariant features
- textured surfaces
- feature transformation
- translation and scale invariant
- interest point detectors
- scale space theory
- gaussian derivatives
- texture features
- scale invariant features
- pattern recognition