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Towards digital representations for brownfield factories using synthetic data generation and 3D object detection
Linköping University, Department of Management and Engineering, Product Realisation. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5950-4962
Linköping University.
Linköping University.
Linköping University, Department of Management and Engineering, Product Realisation. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7210-0209
2024 (English)In: Proceedings of the Design Society: International Conference on Engineering Design, Cambridge University Press, May 2024, Vol. 4, pp. 2297 - 2306 / [ed] Gaetano Cascini, Cambridge University Press , 2024, Vol. 4, p. 2297-2306Conference paper, Published paper (Refereed)
Abstract [en]

This study emphasizes the importance of automatic synthetic data generation in data-driven applications, especially in the development of a 3D computer vision system for engineering contexts such as brownfield factory projects, where no data is readily available. Key points: (1) A successful integration of a synthetic data generator with the S3DIS dataset, leading to a significant enhancement in object detection of previous classes and enabling recognition of new ones; (2) A proposal for a CAD-based configurator for efficient and customizable scene reconstruction from LiDAR scanner point clouds.

Place, publisher, year, edition, pages
Cambridge University Press , 2024. Vol. 4, p. 2297-2306
Keywords [en]
artificial intelligence (AI), brown field, digital twin, point cloud, synthetic data generation
National Category
Computer graphics and computer vision
Identifiers
URN: urn:nbn:se:liu:diva-221068DOI: 10.1017/pds.2024.232Scopus ID: 2-s2.0-85194086010OAI: oai:DiVA.org:liu-221068DiVA, id: diva2:2036095
Conference
International Conference on Engineering Design, 2024
Available from: 2026-02-06 Created: 2026-02-06 Last updated: 2026-02-06Bibliographically approved
In thesis
1. Learning-Based Methods for Visual Understanding in Engineering and Production Workflows
Open this publication in new window or tab >>Learning-Based Methods for Visual Understanding in Engineering and Production Workflows
2026 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Artificial intelligence (AI) has advanced rapidly across engineering and industrial domains, yet its adoption in production environments is often constrained by the need for higher system reliability, limited availability of high-quality data, and the challenge of embedding tacit engineering knowledge into learning-based models. These limitations hinder the broader industrial push toward flexible, data-driven automation capable of handling increasing product variability and shorter production cycles.

This thesis investigates how learning-based methods can be designed and integrated as re-liable perception components within production workflows. Through four complementary case studies, the work demonstrates how visual representations—ranging from Computer-Aided Design (CAD)-derived images and engineering drawings to point clouds and RGB-D images—can be leveraged to address concrete industrial challenges across multiple stages of the manufacturing pipeline.

The first case study predicts fixturing clamp configurations for welding operations in automotive manufacturing by learning geometric patterns from CAD-derived representations. The second applies optical character recognition to engineering drawings to accelerate quality-control and documentation workflows. The third examines scene reconstruction and 3D object detection from point clouds, using synthetic data generation to mitigate data scarcity. The fourth develops a fast, zero-shot pose estimation approach for robotic manipulation, enabling reliable object localization in dynamic industrial environments.

Taken together, these studies show how AI methods informed by structured engineering knowledge can increase process efficiency, reduce manual workload, and help resolve persistent automation bottlenecks in modern manufacturing.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2026. p. 62
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 2506
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:liu:diva-221069 (URN)10.3384/9789181184648 (DOI)9789181184631 (ISBN)9789181184648 (ISBN)
Public defence
2026-03-05, ACAS, A-building, Campus Valla, Linköping, 13:15 (English)
Opponent
Supervisors
Funder
Vinnova, 2021-02481Vinnova, 2020-02974Vinnova, 2023-02694
Available from: 2026-02-06 Created: 2026-02-06 Last updated: 2026-02-06Bibliographically approved

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Villena Toro, JavierWiberg, Anton

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