A Fast Linearly Wavelength Step-Swept Light Source Based on Recirculating Frequency Shifter and Its Application to FBG Sensor Interrogation.
Quan YuanZhaoying WangLipei SongZhaoyu LuDiannan HuJiaqi QinTianxin YangPublished in: Sensors (2019)
Keyphrases
- light source
- shape from shading
- single image
- photometric stereo
- surface normals
- lighting conditions
- multiple images
- specular reflection
- illumination conditions
- multiple light sources
- object surface
- surface reflectance
- structured light
- infrared
- surface orientation
- specular highlights
- ambient illumination
- real objects
- ground plane
- illumination direction
- lambertian surface
- cast shadows
- reflectance properties
- point light source
- viewpoint
- three dimensional