Keyphrases
- video retrieval
- high level features
- video clips
- key frames
- video database
- visual content
- video search
- content based retrieval
- keypoints
- video data
- semantic gap
- feature vectors
- video content
- feature extraction
- concept detection
- video segments
- three dimensional
- retrieval systems
- co occurrence
- image features
- high level
- feature set
- low level