Acta Optica Sinica, Volume. 39, Issue 11, 1111003(2019)
Correction and Implementation of Polarization-Difference Imaging Model for Underwater Target
This study proposes an improved underwater polarization-difference imaging model to overcome the problem of distortion that occurs in image processing based on conventional underwater polarization-difference imaging model. By this method, the inversion process and correction parameters are introduced for the correction of target forward-scatter intensity,thereby avoiding the image distortion caused by the global parameters’ direct inversion and the negative local gray values associated with the traditional underwater polarization-difference imaging model. Using active linear-polarization illumination and underwater-target imaging detection, we obtain the polarization image data with an FD-1665 polarization imager. Using objective image-quality evaluation parameters, we compare multiple sets of experimentally processed images. Results show that the proposed model effectively improves the image-contrast value by more than 40% in comparison with those obtained by the conventional model, indicating the effectiveness of the improved polarization difference imaging model.
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Jiejun Wang, Lei Liang, Shu Li, Song Ye, Fangyuan Wang. Correction and Implementation of Polarization-Difference Imaging Model for Underwater Target[J]. Acta Optica Sinica, 2019, 39(11): 1111003
Category: Imaging Systems
Received: Jun. 27, 2019
Accepted: Jul. 29, 2019
Published Online: Nov. 6, 2019
The Author Email: Li Shu (lishu_owen@sina.com)