Stratification Pattern of Static and Scale-Invariant Dynamic Measures of Heartbeat Fluctuations Across Sleep Stages in Young and Elderly.
Daniel T. SchmittPhyllis K. SteinPlamen Ch. IvanovPublished in: IEEE Trans. Biomed. Eng. (2009)
Keyphrases
- scale invariant
- affine invariant
- keypoints
- natural images
- scale space
- multiscale
- scale invariance
- object class recognition
- scale invariant features
- interest point detectors
- feature transformation
- affine transformation
- image structure
- invariant features
- texture images
- textured surfaces
- ecg signals
- denoising
- image features