Image Feature Extraction and Denoising by Sparse Coding.
Erkki OjaAapo HyvärinenPatrik O. HoyerPublished in: Pattern Anal. Appl. (1999)
Keyphrases
- image feature extraction
- sparse coding
- denoising
- natural images
- image processing
- image denoising
- dictionary learning
- corner detection
- feature extraction
- wavelet domain
- sparse representation
- image patches
- discriminative power
- shift invariant
- image classification
- image indexing
- test images
- unsupervised learning
- generative model
- pattern recognition
- linear combination
- visual words
- signal processing
- multiscale
- image restoration
- bag of words
- machine learning
- image compression
- higher order
- wavelet packet
- high dimensional
- image segmentation
- computer vision