CALL FOR PARTICIPATION SHREC'09 - 3D Shape Retrieval Contest 2009 at EUROGRAPHICS 2009 - Workshop on 3D Object Retrieval *Introduction* The general objective of the 3D Shape Retrieval Contest (see http://www.aimatshape.net/event/SHREC) is to evaluate the effectiveness of 3D-shape retrieval algorithms. After three years of success, the contest is now organized in conjunction with the Eurographics Workshop on 3D Object Retrieval, where the evaluation results will be presented and printed in the corresponding workshop proceedings published by the Eurographics Book Series. The participants of each track will collectively write a paper, which will be published in the proceedings of the Eurographics Workshop 3D Object Retrieval. At least one author per track must register for the workshop, and present the results. *Tracks* The following tracks are organized. For a descrption of the task, the collections, queries, evaluation, procedures, and time schedule, follow the links or contact the track coordinator. * Generic retrieval on new benchmark Organizer: Afzal Godil, National Institute of Standards and Technology Contact: godil@nist.gov Web page: http://www.itl.nist.gov/iad/vug/sharp/benchmark/shrecGeneric * Partial shape retrieval Organizer: Afzal Godil, National Institute of Standards and Technology Contact: godil@nist.gov Web page: http://www.itl.nist.gov/iad/vug/sharp/benchmark/shrecPartial * 3D retrieval using machine learning Organizer: Ryutarou Ohbuchi (University of Yamanashi) Contact: ohbuchi@yamanashi.ac.jp Web page: http://www.kki.yamanashi.ac.jp/~ohbuchi/research/SHREC/index.html * Structural shape retrieval Organizer: Jurrian Hartveldt (Utrecht University), Michela Spagnuolo (IMATI) Contact: jhartvel@cs.uu.nl, michi@ge.imati.cnr.it Web page: http://shrec.ge.imati.cnr.it/shrec09_structural.html *Procedure* 1) Participants register to the tracks they want to participate in, see the track webpage 2) Each track is performed according its own schedule. 3) The track organizers collect the results. 4) The track results are combined into a joint paper, to be included in the proceedings of the Eurographics Workshop on 3D Object Retrieval. 5) The description of the tracks and their results are presented the Eurographics Workshop on 3D Object Retrieval (March 29, 2009). *Time Schedule* Nov, Dec, Jan - Each track has its own timeline February 1 - Each track is finished, and results are ready for inclusion in a track report February 15 - Camera ready track papers submitted for printing March 29 - EUROGRAPHICS Workshop on 3D Object Retrieval including SHREC'09 The individual tracks will have their own time schedule for registration of participants, release of queries or submission of executables, submission of results, etc. *Organization* The SHREC contest is supported by the FOCUS-K3D project (see http://www.focusk3d.eu). For information about the contest, the results, etc. see http://www.aimatshape.net/event/SHREC/. The results of SHREC'09 are presented at the Eurographics Workshop on 3D Object Retrieval, March 29, 2009, see http://3dor.ge.imati.cnr.it/ and http://eurographics2009.com/co_events/index.html The SHREC organizers are Frank ter Haar and Remco Veltkamp. To contact the organizers, send a message to shrec@cs.uu.nl.