Sparse Representation with Optimized Learned Dictionary for Robust Voice Activity Detection.
Datao YouJiqing HanGuibin ZhengTieran ZhengJie LiPublished in: Circuits Syst. Signal Process. (2014)
Keyphrases
- sparse representation
- learned dictionary
- sparse coding
- norm minimization
- dictionary learning
- compressive sensing
- image patches
- voice activity detection
- image classification
- face recognition
- noisy environments
- signal processing
- random projections
- image representation
- high dimensional data
- dimensionality reduction
- test images
- data sets
- high dimensional
- multiscale
- machine learning
- data mining