本文 通过位平面分解法分割天空区域并运用椭圆最小二乘法拟合日周光散射光圈,并自动确定日周光的中心,将中心点的亮度与天空区域平均亮度的加权值作为最终提取的天空亮度值 最后运用大气散射模型对雾天降质图像进行复原-In t his paper , we segment t he sky area by bit2plane decomposition , and fit circadian light scat tering ring using elliptical least squares

用修正矩阵束算法和二维旋转不变技术(2D-ESPRIT)提取基于 GTD 模型的目标二维散射中心参数-modified matrix pencil method and two dimensional (2D) ESPRIT method are proposed in this paper to extract the scattering centers based on GTD model to avoid these drawbacks. Simulations show that