Keyphrases
- content description
- image database
- information retrieval
- information retrieval systems
- document retrieval
- mpeg standard
- retrieval accuracy
- visual descriptors
- image retrieval
- mpeg video
- retrieval systems
- text retrieval
- indexing techniques
- shape coding
- vocabulary tree
- similarity estimation
- efficient retrieval
- content based retrieval
- test collection
- query expansion
- image features
- feature vectors
- multimedia