水下
旋光法
偏振滤光片
穆勒微积分
光学
计算机科学
极化(电化学)
光学滤波器
图像质量
计算机视觉
光散射
数字成像
图像处理
人工智能
遥感
散射
数字图像
物理
地质学
图像(数学)
海洋学
物理化学
化学
作者
Hongyuan Wang,Jiaqi Li,Haofeng Hu,Junfeng Jiang,Xiaobo Li,Kun Zhao,Zhenzhou Cheng,Mei Sang
出处
期刊:IEEE Photonics Journal
日期:2021-08-01
卷期号:13 (4): 1-6
被引量:10
标识
DOI:10.1109/jphot.2021.3094359
摘要
Polarimetric imaging is an effective way for enhancing the image quality in underwater environments. Previous polarization-based methods for underwater imaging actually involve both optical and digital processing, while compared with digital processing, the importance of the optical method is not clear. In this paper, we propose a polarimetric method for underwater imaging based on the Mueller imager. In this method, in order to optimally filter out the backscattered light and enhance the image quality, the polarization states of illumination light together with the polarization filter in front of the camera are synergistically modulated in an optical way. In other words, the quality of images captured by the camera can be directly improved without any digital processing. A series of experimental results show the effectiveness of the proposed method, which indeed verifies its superiority in scattering media.
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