NDLI: An image-based three-camera real-time synchronous skylight polarization pattern measurement system

Content Provider	IEEE Xplore Digital Library
Author	Chen Sun Huawei Liang Tao Mei Daobin Wang Hui Zhu
Copyright Year	2013
Description	Author affiliation: Intell. Vehicle Center, Inst. of Adv. Manuf. Technol., Hefei, China (Huawei Liang; Hui Zhu) \|\| Dept. of Autom., Univ. of Sci. & Technol. of China, Hefei, China (Chen Sun; Daobin Wang) \|\| Inst. of Adv. Manuf. Technol., Changzhou, China (Tao Mei)
Abstract	As a new pattern of navigation approach with the characteristics of high robustness, autonomous characteristics and anti-interference ability, polarization navigation attracts the attention of the experts to perform further researches. A relatively stable skylight polarization pattern exists in a certain time period at a specific place, which acts as the precondition for the completion of the polarization navigation. Therefore, the measurement of skylight polarization is of great importance to the polarization navigation. Various skylight polarization pattern measurement approaches have been performed in the past. However, disadvantages exist in the current measurement instruments, including time delay and non-synchronization. In this paper, a new image-based three-camera skylight polarization pattern measurement system is presented with its real-time and synchronous advantages. The main designing idea of the system is to equip the three cameras with three linear polarizers of different polarization directions, which could perform skylight image acquisition synchronously at the same time. Experiment with this system shows that it is able to obtain the stable skylight polarization pattern with the average time for measurement cycle 1.25s, significantly improving the acquisition time. Validation of the experimental results with theoretical result is also performed, proving the authenticity of measured data.
Sponsorship	IEEE Robot. Autom. Soc.
Starting Page	1677
Ending Page	1682
File Size	580765
Page Count	6
File Format	PDF
ISBN	9781479927449
DOI	10.1109/ROBIO.2013.6739708
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cameras Calibration Scattering Navigation Current measurement Atmospheric measurements Time measurement
Content Type	Text
Resource Type	Article

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