Mobile visual search via hievarchical sparse coding.
Xiyu YangLianli LiuXueming QianTao MeiJialie ShenQi TianPublished in: ICME (2014)
Keyphrases
- sparse coding
- natural images
- sparse representation
- dictionary learning
- linear combination
- image classification
- unsupervised learning
- image representation
- generative model
- feature space
- high dimensional
- image patches
- bag of words
- visual words
- sparse codes
- retrieval accuracy
- data sets
- natural language processing
- multiscale
- signal processing
- input image
- small number
- relevance feedback
- machine learning