Compact interferometric projector for high accuracy 3D imaging in space
We describe a novel projector design based on interferometric fringe projection. The key component in the projector, a movable micro-mirror, has undergone initial vibration, TVAC and radiation testing, with no observed component degradation. We use multi-frame active stereo as basis for 3D reconstruction, giving 3D measurement standard deviation of 0.2 mm, with 12.5 Hz 3D image capture rate and 3D image resolution of 500 x 500 pixels. The system's low power, small size and component longevity makes it well suitable for space applications.
Academic chapter/article/Conference paper
- SINTEF Digital / Smart Sensors and Microsystems
Optical Society of America
Proceedings OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP): 3D Image Acquisition and Display: Technology, Perception and Applications