SHREC 2010 - Shape Retrieval Contest of Non-rigid 3D Models

Call For Participation:
SHREC 2010 - Shape Retrieval Contest of Non-rigid 3D Models

Introduction


As shown in the figure, non-rigid 3D objects are commonly seen in our surroundings. However, previous efforts have been mainly devoted to the retrieval of rigid 3D models, and thus comparing non-rigid 3D shapes is still a challenging problem in content-based 3D object retrieval. Therefore, we organize this track to promote the development of non-rigid 3D shape retrieval.

The objective of this track is to evaluate the performance of 3D shape retrieval approaches on the subset of a publicly available non-rigid 3D models database----McGill Articulated Shape Benchmark database.

Task description
The task is to evaluate the dissimilarity between every two objects in the database and then output the dissimilarity matrix.

Data set
The McGill Articulated Shape Benchmark database consists of 255 non-rigid 3D models which are classified into 10 categories. The maximum number of the objects in a class is 31, while the minimum number is 20.

200 models are selected (or modified) to generate our test database to ensure that every class contains equal number of models. The models are represented as watertight triangle meshes and the file format is selected as the ASCII Object File Format (*.off). The original database is publicly available on the website: http://www.cim.mcgill.ca/~shape/benchMark/

Evaluation Methodology
We will employ the following evaluation measures: Precision-Recall curve; Average Precision (AP) and Mean Average Precision (MAP); E-Measure; Discounted Cumulative Gain; Nearest Neighbor, First-Tier (Tier1) and Second-Tier (Tier2).

Procedure
The following list is a step-by-step description of the activities:

Schedule
January 26 - Call for participation.
January 29 - 10 sample models of the test database will be available on line.
February 3 - Please register before this date.
February 3 - Distribution of the whole database. Participants can start the retrieval.
February 10 - Submission of results (dissimilarity matrix) and a one page description of their method(s)).
February 17 - Distribution of relevance judgments and evaluation scores.
February 20 - Submission of final descriptions (one page) for the contest proceedings.
February 24 - Track is finished, and results are ready for inclusion in a track report
March 7 - Camera ready track papers submitted for printing
May 2 - EUROGRAPHICS Workshop on 3D Object Retrieval including SHREC'10

Organizers
Zhouhui Lian, Afzal Godil

Data
Test data set , Thumbnails, Classification file

Please Cite the paper :
SHREC'10 Track: Non-rigid 3D Shape Retrieval., Z. Lian, A. Godil, T. Fabry, T. Furuya, J. Hermans, R. Ohbuchi, C. Shu, D. Smeets, P. Suetens, D. Vandermeulen, S. Wuhrer
In: M. Daoudi, T. Schreck, M. Spagnuolo, I. Pratikakis, R. Veltkamp (eds.), Proceedings of the Eurographics/ACM SIGGRAPH Symposium on 3D Object Retrieval, 2010. pdf paper