Difference between revisions of "Private:copyDetection: Notes"
From NMSL
(New page: == Video Copy Detection using Optical Flow == * any previous work? == 3D Video Copy Detection == * ideas, previous works?) |
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| + | == Video Copy Detection == | ||
| − | + | '''Early Idea''' | |
| − | * | + | * Collect large set of videos (may be from TREC) |
| + | |||
| + | * Extract local features (e.g., SIFT) from I frames | ||
| + | |||
| + | * Cluster these features into K clusters using for example K-means method (need to try for different values of K) | ||
| + | |||
| + | * To create signatures | ||
| + | |||
| + | ** Divide a video into groups (may be GOP) | ||
| + | ** Extract local features from I frames | ||
| + | ** Map these features to the K clusters (prob value for each cluster) | ||
| + | |||
| + | * Extract motion vectors from | ||
Revision as of 13:20, 28 December 2010
Video Copy Detection
Early Idea
- Collect large set of videos (may be from TREC)
- Extract local features (e.g., SIFT) from I frames
- Cluster these features into K clusters using for example K-means method (need to try for different values of K)
- To create signatures
- Divide a video into groups (may be GOP)
- Extract local features from I frames
- Map these features to the K clusters (prob value for each cluster)
- Extract motion vectors from
3D Video Copy Detection
- ideas, previous works?
