Keyphrases
- wavelet transform
- multiresolution
- wavelet coefficients
- image database
- image coding
- information retrieval
- subband
- multiscale
- test collection
- image compression
- feature extraction
- high frequency
- query expansion
- multi resolution analysis
- efficient retrieval
- low frequency
- retrieval model
- image retrieval
- retrieval systems
- document retrieval
- relevance feedback
- query formulation
- shape retrieval
- translation invariant
- feature vectors
- image analysis
- wavelet domain
- retrieval process
- training phase
- structured documents
- web search
- wavelet analysis
- information retrieval systems