Sparse representation of gearbox compound fault features by combining Majorization-Minimization algorithm and wavelet bases.
Chunyan LuoChangqing ShenWei YouWeiguo HuangGaigai CaiZhongkui ZhuPublished in: I2MTC (2016)
Keyphrases
- sparse representation
- test images
- objective function
- sparse reconstruction
- dynamic programming
- expectation maximization
- regularized least squares
- computationally efficient
- learning algorithm
- image features
- multiscale
- least squares
- search space
- computational complexity
- negative matrix factorization
- compressive sensing
- wavelet bases
- computer vision