ENST/UOB/LU@TRECVID2007 HIGH LEVEL FEATURE EXTRACTION USING 2-LEVEL PIECEWISE GMM.
George YazbekGeorges KfouryGabriel AlamChafic MokbelGérard CholletPublished in: TRECVID (2007)
Keyphrases
- high level
- feature extraction
- low level
- lower level
- gaussian mixture model
- higher level
- feature vectors
- feature space
- object level
- video data
- multiscale
- semantic indexing
- speaker identification
- feature selection
- demographic information
- video retrieval
- event detection
- generative model
- em algorithm
- principal component analysis
- wavelet transform
- image features
- hidden markov models
- preprocessing