Action-Based Pedestrian Identification via Hierarchical Matching Pursuit and Order Preserving Sparse Coding.
Sibao ChenYi XinBin LuoPublished in: Cogn. Comput. (2016)
Keyphrases
- sparse coding
- order preserving
- matching pursuit
- linear combination
- basis functions
- sparse representation
- natural images
- image coding
- unsupervised learning
- image classification
- discriminative power
- generative model
- hash functions
- image patches
- image representation
- sparse approximation
- object detection
- feature space
- high dimensional
- object recognition
- machine learning
- training set
- visual words
- high quality
- principal component analysis
- small number
- semi supervised
- bag of words
- reinforcement learning
- multiscale
- image processing