提出一种基于偏振辐射图融合的太阳耀光抑制方法。采用同时偏振成像技术对耀光水面进行偏振测量,获得0°、45°、90° 3个方向的偏振辐射图。在耀光受到最强抑制的偏振辐射图中选择残留强耀光区域,计算其Stokes参量,生成区域耀光抑制偏振辐射图。将所选偏振辐射图与区域耀光抑制偏振辐射图融合,进一步抑制耀光强度。室内实验结果表明,该方法可有效抑制耀光,消除图像的饱和像素,获得的融合图的亮度比强度图更加均匀,目标细节和轮廓信息更清晰,目标相对耀光背景的对比度显著提高。

A new sun glint suppression method is proposed based on polarized radiation image fusion. Herein, the polarization measurement of sun glint is performed using the simultaneous polarization imaging technology and the polarized radiation images of 0°, 45°, and 90° are obtained. In the polarized radiation image with the strongest glint suppression, the residual strong glint region is selected and used to generate a regional glint suppression polarization radiation image based on the calculation of Stokes parameters. The selected polarized radiation image is fused with the regional glint suppression polarized radiation image to further suppress the glint intensity. The indoor experimental results demonstrate that the proposed method can effectively suppress glint and eliminate image saturation. In addition, the obtained fusion image is more uniform than the intensity image, and the target details and contour information are clear, which significantly improves the contrast of the target relative to the flare background.