OPTICAL 3D METROLOGY

workshop

Würzburg, Germany: 15-16 December 2022

ABOUT

Optical 3D Metrology (O3DM) is the second in a series of conferences that will build on the heritage of SPIE Videometrics (1991-2017) and Optical 3D Measurement Techniques (1989-2009). The past edition of O3DM was held in Strasbourg in December 2019 under the umbrella of ISPRS. The primary theme is the precise 3D measurement and accurate modelling from imaging and range sensors. Topics of interest include all phases of precise 3D optical and range imaging for the accurate and reliable modelling of real scenes. O3DM is focussed on the growing interest in processing and modelling technology, and the increasing demand for accurate 3D models in applications such as industrial inspection, aerospace and automotive design, material and component testing, scene documentation, motion analysis, medicine and the exploration of remote and hazardous sites, just to name a few. O3DM, like its predecessor events, wants to encourage the cooperation and information exchange between academia and industry in the field of optical metrology.

The keynote presentations could be followed remotely via Zoom at this link.

CONFERENCE INFORMATION & VENUE

O3DM is organized as an ISPRS event and the second O3DM workshop will be held in Würzburg, Germany during 15-16 December 2022 at the Graduate School, University of Würzburg. High speed trains to Würzburg provide good connections from all over Europe and Frankfurt airport. The Graduate School is located at 21 Beatrice-Edgell-Weg and can be accessed using buses from the central station. There are many attractions to visit in and around the city, including a Christmas night market. For more information and maps of Würzburg see en.wikivoyage.org/wiki/Würzburg.

O3DM will be held in conjunction with the 7th international workshop "LowCost 3D". These are two complementary scientific events, accessible with the same registration fee, that will provide delegates with a wide range of topics centred on optical 3D measurement systems and applications. Participants could join both events with just one registration fee.

Travel and local information available here

INVITED SPEAKERS

O3DM feature invited speakers from academia and industry, to encourage cooperation and information exchange between research and development in the field of optical metrology.

"Dynamic optical 3D metrology for wind energy applications"

Thomas Luhmann - Institute for Applied Photogrammetry and Geoinformatics, Jade University of Applied Sciences (Germany).

The keynote will present recent developments and projects in the field of high-dynamic photogrammetry and scanning techniques for the acquisition of wind energy systems in wind tunnel and in situ experiments.

"SfM versus marker-based close-range photogrammetry: distinctions and potential for an integrated approach"

Clive Fraser - Professorial Fellow, Dept. of Infrastructure Engineering, University of Melbourne (Australia)

Within industrial and engineering photogrammetry, the utilisation of targets/markers is near universal, whereas the adoption of automated, targetless orientation and object reconstruction is becoming increasingly more widespread across other application domains. This naturally poses the question of why so-called Structure-from-Motion (SfM) techniques are yet to be employed to any significant extent in large-scale vision metrology, in spite of the obviously appealing prospect of dispensing with artificial signalisation, be it through physical targets or projection schemes. This presentation reviews the principal distinctions between the SfM and marker-based approach, with the emphasis being upon measurement accuracy, reliability and practicability. Also discussed will be the potential for an integrated approach employing both SfM and targets, with a project example of where such an integrated network orientation and point determination approach proved to be optimal in terms of both accuracy and productivity. The project involved deformation measurements of an inflatable antenna on the International Space Station.

"How Does Context Help for the Semantic Interpretation of 3D Point Clouds?"

Martin Weinmann

Institute of Photogrammetry and Remote Sensing, Karlsruhe Institute of Technology - KIT, (Germany)

3D data in the form of irregularly distributed 3D points serve as the basis for a diversity of applications such as geographic information systems, building/city modeling, construction site monitoring, rail infrastructure mapping, urban planning, autonomous driving, or creation of digital twins. Many of these applications rely on the automatic interpretation of such 3D data to reason about properties of the scene and/or objects therein. The reasoning, in turn, can be tackled by using traditional approaches that rely on handcrafted features, but also by using modern deep learning approaches that rely on the learning of suitable features to solve a particular task. While deep learning has been proven beneficial for a diversity of tasks addressing image interpretation, the transfer of deep learning to 3D point clouds is not straightforward due to the unstructured nature of the underlying data. This presentation will exemplarily focus on the semantic segmentation of 3D point clouds acquired from terrestrial and airborne platforms via laser scanning, and provide a survey addressing the three main strategies to achieve this: (1) pointwise classification, (2) contextual classification, and (3) deep-learning-based classification. In this scope, the strengths and weaknesses of these strategies will be discussed, and the common foundations and conceptual differences will be highlighted.

CALL FOR PAPERS

We invite submission of original research contributions, as well as demonstrations of successful applications in the following areas of optical 3D metrology:

  • Characterisation and Calibration of 3D Sensing: investigation on passive sensors, active scanning devices (fringe projection, coded/white light, phase shift technique, etc.), mobile and handheld 3D devices, complementary 6DoF sensors, sensor design, advances in calibration and orientation techniques, automatic data acquisition and strategies for next best view planning, accuracy and performances evaluation (test objects, methodologies, facilities and standards), certification and acceptance of optical technologies

  • 3D Processing and Modelling: sensor integration and data fusion, image sequence analyses, precise 3D digitization, image- and range-based 3D modelling, assessment of model quality, automatic matching and segmentation of structured and unstructured scenes, local, semi-global and global image matching strategies, multi-view registration and integration, point cloud analysis and interpretation, 3D model optimization, modelling of deformable surfaces, automation and process control, deformation measurement and analysis, object tracking, rapid prototyping and 3D printing for digital/physical twinning, colour processing, photometric stereo and Reflectance Transformation Imaging (RTI), inline 3D metrology, macro-photogrammetry.

  • 3D applications of optical metrology in: manufacturing, engineering, robotics, entertainment, geosciences, natural and built environment, medical and biological sciences, etc.


Supported by:

IMPORTANT DATES

  • Abstract Submission: 23 September, 2022 (extended)

  • Notifications to Authors: 30 September, 2022

  • Full Paper Submission: 4 November, 2022


PAPER SUBMISSIONS & PROCEEDINGS

Given the aforementioned themes, abstracts should be around 1000 words. Authors are encouraged to include figures and diagrams to illustrate the concepts outlined in the abstract and to use the following template. Please send your contribution (first-author.pdf or first-author_etal.pdf) to o3dm@informatik.uni-wuerzburg.de before the deadline.

Abstracts will be evaluated by the Scientific Committee and accepted contributions must then be converted into full papers in order to be published in the conference proceedings. Full papers must be formatted according to the ISPRS template and be a maximum of 8 pages. After the authors affiliations and before the keywords, please type only Technical Commission II, without any reference to a Working Group.

The accepted full papers will be published in the ISPRS International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences. Each submitted paper must have at least one paid registration fee in order to be published in the ISPRS Archives and have an oral presentation included in the technical sessions of the event. The ISPRS Archives are indexed in SCOPUS.


TECHNICAL PROGRAM

O3DM 2022 will feature various technical sessions with oral presentations. It will start on Thursday 15th in the morning and end on Friday 16th of December at noon. The workshop will also include demo sessions. Invited presentations will be in common with the Low Cost 3D workshop.

The technical program of the event is available here (v. 12/12/2022).

The keynote presentations (ad LC3D event) could be followed remotely via Zoom at this link.


REGISTRATION

Until October 21st, 2022:

  • Full: 100 Eur

  • MSc or PhD student (less/equal than 30 years old): 50 Eur

After October 21st, 2022 and till December 11th, 2022:

  • Full: 125 Eur

  • MSc or PhD student (less/equal than 30 years old): 75 Eur

Onsite (only with cash):

  • Full: 250 Eur

  • MSc or PhD student (less/equal than 30 years old): 200 Eur

The registration system is done in conjunction with the LowCost3D event and is available here:

https://www.eventbrite.de/e/lowcost3d-and-o3dm-tickets-427851704967

Registration fees cover session attendance (for both events), welcome drink, coffee breaks and Icebreaker party. Students should provide a valid evidence of their student status (to be sent by email to o3dm@informatik.uni-wuerzburg.de with proof of registration). The technical sessions of LowCost3D (LC3D) and Optical 3D Metrology (O3DM) will run in parallel but in the same building and participants could move from one event to another.

ORGANIZERS

O3DM 2022 is organized by:

Mark Shortis, RMIT University, Australia & Fabio Remondino, Fondazione Bruno Kessler, Italy


SCIENTIFIC COMMITTEE

  • Devrim Akca, Isik University, Turkey

  • Werner Bösemann, Hexagon, Germany

  • Takashi Fuse, The University of Tokyo, Japan

  • Lazaros Grammatikopoulos, University of West Attica, Greece

  • Vladimir Knyaz, Gosniias, Russia

  • Derek Lichti, University of Calgary, Canada

  • Thomas Luhmann, Jade University of Applied Sciences, Germany

  • Hans-Gerd Maas, Technische Universität Dresden, Germany

  • Fabio Menna, Fondazione Bruno Kessler, Italy

  • Erica Nocerino, University of Sassari, Italy

  • Andreas Nüchter, Julius-Maximilians-Universität Würzburg, Germany

  • Maria-Valasia Peppa, Newcastle University, England

  • Danilo Schneider, University of Applied Sciences Dresden, Germany

  • Stuart Robson, University College London, England

  • Ewelina Rupnik, IGN, France

  • Marco Tarabini, Politecnico di Milano, Italy

  • Antonio Tommaselli, São Paulo Sate University, Brazil

  • Steve Vanlanduit, University of Antwerp, Belgium

PREVIOUS CONFERENCES - VIDEOMETRICS SERIES

Sixteen Videometrics conferences were held in a series started in 1991 by Sabry El-Hakim. Under the auspices of the International Society for Optical Engineering (SPIE) from the beginning, the first conference on Industrial Vision Metrology was held in Winnipeg, Canada. Based on the success of this first venture into an emerging discipline, the conference was renamed Videometrics and held in conjunction with the SPIE Photonics East group of conferences in Boston and Philadelphia during 1992-1995.

The conference was originally focused on the metric performance of image sensors and algorithms to produce the most accurate and reliable geometric measurements and models. Topics such as sensor calibration, performance evaluation and accurate object reconstruction were predominant. It was later expanded to encompass all phases of 3D optical imaging, range imaging and modelling.

Videometrics was then re-located to become part of SPIE Photonics West, held annually in California. The conferences were held in San Diego in 1997, in San Jose in 1999 and 2001, then moved to Santa Clara in 2003 and moved back to San Jose in 2005 and 2007. The conference then became part of Optics + Photonics program track on Image and Signal Processing within the Optical Engineering and Applications conferences in San Diego in 2009. The conference was renamed to "Videometrics, Range Imaging and Applications" to reflect the changes in contemporary practice.

Throughout all of this period the attendance from North America was slowly declining, and the participation from Europe and Asia had strengthened, despite the impact of the global financial downturn. Therefore in 2011 it was decided to move the Videometrics series to Munich, Germany, to be part of the SPIE Europe conference on Optical Metrology, co-located with the World of Photonics conference and exhibition. The general theme of Optical Metrology resonated very well with Videometrics and the majority of authors and presenters from Europe confirmed the correct decision to relocate the conference. Videometrics was held in Munich in 2011, 2013, 2015 and 2017.

After the initial success in Munich, the Videometrics brand became very diluted and the character of the conference began to change. Partly because of the many conferences under the umbrella of Optical Metrology, the themes became very broad and the conference began to lose its identity. Simultaneously the attendances in the technical sessions fell away and participation from industry declined, despite the best efforts in the most recent editions to engage with industry and provide keynote speakers from the leading edge of commercial development.

Accordingly, with the support of the technical committee, the organisers made the difficult decision not to offer Videometrics, Range Imaging and Applications in 2019. Instead, the organisers and committee committed to try a new approach that is much more tightly focussed on precise 3D measurement using optical systems, with an emphasis on industry relevance. From this idea the concept of Optical 3D Metrology was born and organized under the ISPRS umbrella.

Past conference proceedings are available here: