Statistical voice activity detection based on sparse representation over learned dictionary.
Shi-Wen DengJi-Qing HanPublished in: Digit. Signal Process. (2013)
Keyphrases
- sparse representation
- learned dictionary
- voice activity detection
- sparse coding
- compressive sensing
- dictionary learning
- face recognition
- image patches
- image classification
- high dimensional data
- dimensionality reduction
- random projections
- noisy environments
- signal processing
- linear combination
- image representation
- test images
- pattern recognition
- hidden markov models
- active learning
- high quality
- training data
- machine learning