Open AccessAn approach of target photometric measuring for theodolite visible light imaging
Author(s) -
Sheng-Yi Chen,
Chaoran Fan,
Zhilei Xu,
Feng Zhang,
Xiao-Xue Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1732/1/012188
Subject(s) - theodolite , stars , computer vision , artificial intelligence , computer science , photometry (optics) , field of view , remote sensing , photoelectric effect , magnitude (astronomy) , physics , optics , astrophysics , geology
Photoelectric theodolite is important optical measurement equipment in pelagic aerospace TT&C systems. The visible light imaging method helps capture significant information of the observed target, photometric information is one of them. To achieve expediently and quickly target photometric measuring, it studies and realizes a measuring method, by using stars in the same field of view as the observed target in this paper. Firstly, it calculates the gray values for target and star by image processing algorithm in the image captured by theodolite. Then magnitude information of the star is obtained by using a star catalogue. Lastly, magnitude of the target is calculated by antitheses method. The approach is implemented to investigate the measuring performance and an experiment is carried out by using images containing at least two stars. The result shows good performance of the proposed method.