CALL FOR PARTICIPATION
SHREC2020 - 3D Shape Retrieval Challenge 2020

At Workshop on 3D Object Retrieval.
Contact: shrec@cs.uu.nl

New this year: In 2020, full SHREC papers will follow a two-stage review process and will be published in the international journal Computes & Graphics upon acceptance.

Introduction
The general objective of the 3D Shape Retrieval Contest is to evaluate the effectiveness of 3D-shape retrieval algorithms. SHREC2020 is the fifteenth edition of the contest. Like previous years, it is organized in conjunction with the Workshop on 3D Object Retrieval. At least one author per track must register for the workshop, and present the results. We also cordially invite all participants of a track to register and attend the workshop.

Thanks to the efforts of previous track organizers, SHREC already provides many resources to compare and evaluate 3D retrieval methods. For this year's contest, we aim to explore new and updated tracks. Therefore, the participants are invited to have an active role in the organization of the event. This includes proposing track themes, building or acquiring a test collection, and deciding upon the queries, relevance assessment, and performance measures.

The participants of each track will collectively write a paper, which will be published in the proceedings of the Workshop 3D Object Retrieval. At least one author per track must register for the workshop, and present the results.  We also cordially invite all participants of a track to register and attend the workshop.

Tracks
The following tracks are organized. For description of tasks, the collections, queries, the evaluation procedure, and time schedule, follow the links or contact the track organizer.

1. Non-Rigid Shape Correspondence of Physically Based Deformations
   Organizers: Roberto Dyke, Feng Zhou, Yu-Kun Lai, and Paul L. Rosin
   Contact: Roberto Dyke
   Web page
2. Shape Correspondence with Non-Isometric Deformations
   Organizers: Roberto Dyke, Yu-Kun Lai, and Paul L. Rosin
   Contact: Roberto Dyke
   Web page
3. 3D Point Cloud Semantic Segmentation for Street Scenes
   Organizers: Tao Ku, Remco Veltkamp
   Contact: Tao Ku
   Web page
4. Multi-Domain Protein Shape Retrieval
   Organizers: Matthieu Montès, Florent Langenfeld
   Contact: Matthieu Montès, Florent Langenfeld
   Web page
5. Retrieval and Classification of Relief Surface Patches
   Organizers:Elia Moscoso Thompson, Silvia Biasotti, Andrea Giachetti
   Contact:Elia Moscoso Thompson
   Web page
6. Classification in Cryo-Electron Tomograms
   Organizers: Ilja Gubins, Marten Chaillet, Gijs van der Schot, Remco Veltkamp, Friedrich Förster
   Contact: Ilja Gubins
   Web page
7. River Gravel Characterization
   Organizers: Andrea Giachetti, Silvia Biasotti, Luigi Fraccarollo, Filippo Andrea Fanni
   Contact: Andrea Giachetti, Silvia Biasotti, Luigi Fraccarollo
   Web page
8. Recognition of Gestures Sequences
   Organizers: Ariel Caputo, Andrea Giachetti, Marco Pegoraro
   Contact: Ariel Caputo, Andrea Giachetti
   Web page
9. 6D Object Pose Estimation
   Organizers: Honglin Yuan, Remco Veltkamp
   Contact: Honglin Yuan
   Web page
10. Monocular Image-based 3D Object Retrieval
    Organizers: An-An Liu, Wei-Zhi Nie, Wen-Hui Li, Dan Song, Yu-Qian Li, He-Yu Zhou, Ting Zhang, Xiao-Qian Zhao, Wei Chen, Wu Liu
    Contact: Wen-Hui Li
    Web page

Procedure

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

1. Track organizers have sent their proposal describing the envisioned task, collection, queries, ground truth, evaluation method, and expected number of participants.
2. The tracks are selected, and are listed at the SHREC web page. The track organizers start up their track.
3. Participants register for the tracks they want to participate in.
4. Each track is performed according to its own time schedule.
5. The track organizers collect the results.
6. The track results are combined into a joint paper, to be submitted for review to Computers & Graphics.
7. The description of the tracks and their results are presented at the Workshop on 3D Object Retrieval, 4-5 September 2020

SHREC Time Schedule

Important dates
• February 17, 2020: Submission deadline for track proposals.
• February 21, 2020: Notification of acceptance of track proposals.
• Feb, March 2020: Each track has its own time line.
• April 03, 2020: Each track is completed, and results are included in a track report, submitted for review.
• May 1, 2020: Reviews done, first stage decision on acceptance or rejection.
• May 22, 2020: First revision.
• May 29, 2020: Second stage decision on acceptance or rejection.
• June 12, 2020: First revision.
• June 19, 2020: Final decision on acceptance or rejection.
• September 1, 2020: Publication online in Computers & Graphics.
• September 4-5, 2020: Workshop on 3D Object Retrieval 2020, featuring SHREC 2020.

Past events: SHREC 2019, SHREC 2018, SHREC 2017, SHREC 2016,  SHREC 2015, SHREC 2014