The Single-Shot 3D Movie Camera
3D videos of fast scenes with high data quality
The ‘Single-Shot 3D Movie Camera’ is a motion-robust line triangulation (‘structured light’) sensor that enables the single-shot acquisition of dense 3D data with high resolution. This is possible, because the sensor concept solves the ambiguity problem (which is inherent to each triangulation sensor and limits its information theoretical efficiency) without relying on spatial or temporal codification of the projected signals. The prototype sensor delivers 300,000 independent 3D points with high depth precision (δz < 200μm on human skin) from each 1 Mpix camera frame. A 3D sensor with these features allows for a continuous 3D measurement of fast-moving or deforming objects, resulting in a continuous 3D movie. Like a hologram, each movie-frame encompasses the full 3D information about the object surface, and the observation perspective can be varied while watching the 3D movie (see videos).
Applications: The ‘Single-Shot 3D Movie Camera’ shows its unique properties at time sensitive 3D measurement applications that require highest data qualities. Motion compensation in medical applications (i.e., C-arm cone-beam CTs under weight-bearing conditions or motion management in radiation therapy), tracking of subtle body language expressions in behavioral sciences, or 3D video conferencing (virtual avatar) in VR are just a few examples. Additionally, the concept allows for a broad range of industrial 3D scanning applications, like deforming car bodies or airbags during crash tests, fast moving mechanical parts on conveyor belts, or 3D stress analysis (bullet impact, vibration, deformation, etc.).
Selected Videos Visit the Osmin3D YouTube channel for more Videos.
| F. Willomitzer
Fundamental Limits in Computational 3D Imaging – From Novel 3D Cameras to Looking around Corners
Beyond the Patterns Talk Series, University Erlangen-Nuremberg, Germany, 2021
[Full Video] , [Jump to Project 39:11)]|
Single-Shot 3D Sensing Close to Physical Limits and Information Limits
Dissertation, University Erlangen-Nuremberg, Published as book in the series “Springer Theses” in 2019
Single-shot 3D motion picture camera with a dense point cloud
F. Willomitzer, G. Häusler.
Optics Express 25(19), 23451-23464
High Resolution Single-Shot 3D Imaging with the “3D movie camera”
F. Willomitzer, G. Häusler.
OSA 3D Image Acquisition and Display: Technology, Perception and Applications, 3M3G. 2
Single-shot 3D sensing with improved data density
F. Willomitzer, S. Ettl, C. Faber, G. Häusler.
Applied Optics, 54(3), 408-417
Flying Triangulation – Towards the 3D Movie Camera
F. Willomitzer, S. Ettl, O. Arold, G. Häusler.
Fringe 2013, The 7th International Workshop on Advanced Optical Imaging & Metrology, W. Osten, Springer, Berlin, 895 898.