Acta Optica Sinica, Volume. 39, Issue 6, 0607001(2019)
Modified Image Demodulation Algorithm for Spatially Modulated Full-Polarization Imaging Systems
Spatially modulated full-polarization imaging systems can achieve synchronous detection for full-polarization parameters of targets. The existing demodulation algorithms are only used in monochromatic light detection systems, and they are not suitable for polychromatic light detection systems. The polarization-demodulation algorithm can be modified by finding the position of the central spectrum to obtain the actual carrier frequency. The experimental results demonstrate that the polarization information of the central wavelength can be obtained by utilizing the modified image-demodulation algorithm in broadband spatially modulated full-polarization imaging systems with less than 5% polarization-detection error. The experimental results provide a guild for analyzing the demodulation algorithm of full polarization imaging systems with polychromatic light.
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Song Ye, Haofang Yan, Xiaobing Sun, Jiejun Wang, Xinqiang Wang, Fangyuan Wang, Shu Li, Yongying Gan, Wentao Zhang. Modified Image Demodulation Algorithm for Spatially Modulated Full-Polarization Imaging Systems[J]. Acta Optica Sinica, 2019, 39(6): 0607001
Category: Fourier Optics and Signal Processing
Received: Dec. 25, 2018
Accepted: Feb. 19, 2019
Published Online: Jun. 17, 2019
The Author Email: Wang Jiejun (wangjiejun@guet.edu.cn)