Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group.
Hongxing ZouDianjun WangXianda ZhangYanda LiPublished in: Signal Process. (2005)
Keyphrases
- affine transformation
- affine invariant
- image registration
- feature points
- similarity transformations
- image matching
- affine transform
- b spline
- image deformations
- curve matching
- affine structure
- control points
- fourier descriptors
- moment invariants
- transformation model
- pattern recognition
- transformation parameters
- geometric transformations
- curvature scale space
- denoising
- wavelet transform
- computer vision
- transformed images
- lucas kanade algorithm