000K  utf8
1100  2022$c2022-10-05
1500  eng
2050  urn:nbn:de:gbv:27-dbt-20221110-091129-005
2051  10.3390/s22197540
3000  Bräuer-Burchardt, Christian
3010  Kühmstedt, Peter
3010  Notni, Gunther
3010  Ramm, Roland
4000  The Duality of Ray-Based and Pinhole-Camera Modeling and 3D Measurement Improvements Using the Ray-Based Model  [Bräuer-Burchardt, Christian]
4060  15 Seiten
4209  Geometrical camera modeling is the precondition for 3D-reconstruction tasks using photogrammetric sensor systems. The purpose of this study is to describe an approach for possible accuracy improvements by using the ray-based-camera model. The relations between the common pinhole and the generally valid ray-based-camera model are shown. A new approach to the implementation and calibration of the ray-based-camera model is introduced. Using a simple laboratory setup consisting of two cameras and a projector, experimental measurements were performed. The experiments and results showed the possibility of easily transforming the common pinhole model into a ray-based model and of performing calibration using the ray-based model. These initial results show the model’s potential for considerable accuracy improvements, especially for sensor systems using wide-angle lenses or with deep 3D measurements. This study presents several approaches for further improvements to and the practical usage of high-precision optical 3D measurements.
4950  https://doi.org/10.3390/s22197540$xR$3Volltext$534
4950  https://nbn-resolving.org/urn:nbn:de:gbv:27-dbt-20221110-091129-005$xR$3Volltext$534
4961  https://www.db-thueringen.de/receive/dbt_mods_00053756
5051  620
5550  3D measurements
5550  camera calibration
5550  camera modeling
5550  error analysis
5550  machine vision
5550  photogrammetric stereo sensors