Improvement of beam-tracker for sensor network with Free Space Optics

We study beam trackers using image processing. This function is used for sensor networks using movable optical space communication. However, the beam tracker did not extract the area of the beam normally, and it was often the case that the beam could not be tracked. Therefore, the threshold of HSV(H...

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Bibliographic Details
Published inMeasurement. Sensors Vol. 18; p. 100212
Main Authors Shinki, Tomohiro, Kagawa, Naoki
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2021
Elsevier
Subjects
Beam tracker
Free-space optics
Image processing
Sensor network
Free-space optics
Beam tracker
Sensor network
Image processing
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Summary:We study beam trackers using image processing. This function is used for sensor networks using movable optical space communication. However, the beam tracker did not extract the area of the beam normally, and it was often the case that the beam could not be tracked. Therefore, the threshold of HSV(Hue, Saturation, Value) information was changed to extract the beam region normally. As a result, the fluctuation of the center coordinates of the beam in the program in which the threshold was set this time was smaller than in the beam center coordinates in which the threshold was set in the past when the beam was stasis. In addition, when the beam was moved horizontally, it was sometimes tracked in the opposite direction to the beam, but this time, the result was obtained that it continues to track in the same direction as the beam.
ISSN:2665-9174
2665-9174
DOI:10.1016/j.measen.2021.100212