Sensor-Based Vibration Signal Feature Extraction Using an Improved Composite Dictionary Matching Pursuit Algorithm.
Lingli CuiNa WuWenjing WangChenhui KangPublished in: Sensors (2014)
Keyphrases
- pursuit algorithm
- matching pursuit
- feature extraction
- image coding
- learning automata
- wavelet transform
- sparse approximation
- basis functions
- texture analysis
- vibration signal
- road signs
- frequency domain
- condition monitoring
- image processing
- keypoints
- dimensionality reduction
- principal component analysis
- morphological filters
- sparse representation
- genetic algorithm
- linear combination
- model selection
- natural images
- image classification
- feature space
- computer vision