26-01-2012, 11:24 AM
An Image-Based Approach to Video Copy Detection With Spatio-Temporal Post-Filtering
0909_An_image-based_approach_to_video_copy.pptx (Size: 1.54 MB / Downloads: 41)
INTRODUCTION
Common distortions are
1. scaling
2. compression
3. cropping
4. camcording
SPATIO-TEMPORAL VERIFICATION
Spatio-Temporal Transformation
Temporal Grouping
Spatial Verification(next)
Score Aggregation Strategy
conclution
Our video copy detection system outperforms other submitted results on all transformations. This is due to a very accurate image-level matching. Run KEYSADVES, which is more scalable, shows that our system still obtains excellent results with a memory footprint and query time reduced 20 times.