1. 2006 3D Shape Retrieval Contest Remco Veltkamp, Utrecht University

2. Participants 1. Chaouch et al., INRIA, France, 2. Daras et al., Thessaloniki, Greece, 3. Jayanti et al., Purdue University, Indiana, 4. Laga et al., NAIST, Japan, 5. Makadia et al., University of Pennsylvania, 6. Papadakis et al., Athens, Greece, 7. Shilane et al., Princeton University, New Jersey, 8. Zaharia et al., INT, France,

3. Test collection  Princeton Shape Benchmark, training set + test set  1814 models, renamed, reordered, flattened  PSB classification: 197 classes

4. Queries

5. Performance evaluation  Highly relevant: score 2 Marginally relevant: score 1  Precision, Recall  First, Second Tier  (Normalized) (Discounted) Cumulated Gain  Average Dynamic Recall

6. Performance evaluation Cumulated gain [1,100]

7. Performance evaluation

8. Mean average dynamic recall

9. Conclusions  Excellent opportunity to compare algorithms and analyze strengths and weaknesses  More tracks wanted (polygon soup/watertight, whole/partial, 3D face, molecules?)  More test collections and ground truths wanted

10. Resources Proceedings, all performance numbers, test collection, queries available via: http://www.aimatshape.net/event/SHREC

11. What’s next  SHREC2007  SMI2007

12. Thanks … … to all participants!