Scientific modeling of optical 3D measuring devices based on GPU-accelerated ray tracing using the NVIDIA OptiX engine

A. Keksel; S. Schmidt; D. Beck; J. Seewig

doi:10.1117/12.2673777

10 August 2023 Scientific modeling of optical 3D measuring devices based on GPU-accelerated ray tracing using the NVIDIA OptiX engine

A. Keksel, S. Schmidt, D. Beck, J. Seewig

Author Affiliations +

Proceedings Volume 12619, Modeling Aspects in Optical Metrology IX; 126190F (2023) https://doi.org/10.1117/12.2673777
Event: SPIE Optical Metrology, 2023, Munich, Germany

Abstract

Scientific optical 3D modeling requires the possibility to implement highly flexible and customizable mathematical models as well as high computing power. However, established ray tracing software for optical design and modeling purposes often has limitations in terms of access to underlying mathematical models and the possibility of accelerating the mostly CPU-based computation. To address these limitations, we propose the use of NVIDIA’s OptiX Ray Tracing Engine as a highly flexible and high-performing alternative. OptiX offers a highly customizable ray tracing framework with onboard GPU support for parallel computing, as well as access to optimized ray tracing algorithms for accelerated computation. To demonstrate the capabilities of our approach, a realistic focus variation instrument is modeled, describing optical instrument components (light sources, lenses, detector, etc.) as well as the measuring sample surface mathematically or as meshed files. Using this focus variation instrument model, exemplary virtual measurements of arbitrary and standardized sample surfaces are carried out, generating image stacks of more than 100 images and tracing more than 1E9 light rays per image. The performance and accuracy of the simulations are qualitatively evaluated, and virtually generated detector images are compared with images acquired by a respective physical measuring device.

Conference Presentation

Citation Download Citation

A. Keksel, S. Schmidt, D. Beck, and J. Seewig "Scientific modeling of optical 3D measuring devices based on GPU-accelerated ray tracing using the NVIDIA OptiX engine", Proc. SPIE 12619, Modeling Aspects in Optical Metrology IX, 126190F (10 August 2023); https://doi.org/10.1117/12.2673777

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available