Fast human action classification and VOI localization with enhanced sparse coding.
Shiyang LuJian ZhangZhiyong WangDavid Dagan FengPublished in: J. Vis. Commun. Image Represent. (2013)
Keyphrases
- sparse coding
- action classification
- codebook generation
- sparse representation
- natural images
- bag of words
- action recognition
- image classification
- linear combination
- unsupervised learning
- image representation
- visual words
- generative model
- static images
- bag of visual words
- image patches
- high dimensional
- human actions
- semi supervised
- image processing
- feature selection
- input image
- training data
- human activities
- multiscale
- object recognition
- feature space
- learning algorithm
- multi class