Open AccessMicro Coded-Aperture Lead-In of Light for Calibrating Remote Sensing Cameras
Author(s) -
Jin Li,
Yuan Zhang
Publication year - 2017
Publication title -
ieee photonics technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.81
H-Index - 157
eISSN - 1941-0174
pISSN - 1041-1135
DOI - 10.1109/lpt.2017.2757010
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
We investigate the geometric calibration of a remote sensing camera using a micro coded-aperture lead-in (CAL) of light. A CAL can transform a light beam into multiple subbeams with a precisely known diffraction angle. The multiple sub-beams can be considered as light sources of multiple point-targets at infinity. We experimentally confirm that this method can achieve an accuracy of approximately 101 μm and is simple to calibrate. This method has the potential to be used in the calibration of the interior parameters of optical remote sensors on the ground and in orbit.