Spectrum Estimation by Sparse Representation of Autocorrelation Function.
Adel ZahediMohammad Hossein KahaeiPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2012)
Keyphrases
- sparse representation
- autocorrelation function
- power spectrum
- dictionary learning
- sparse coding
- face recognition
- compressive sensing
- image classification
- frequency domain
- natural images
- joint optimization
- dimensionality reduction
- high dimensional data
- image patches
- object tracking
- data sets
- test images
- infrared
- linear combination
- image representation
- signal processing
- correlation coefficient
- data points
- probabilistic model
- high resolution
- pattern recognition
- machine learning