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本文研究用高频图像滤波器去除背景干扰，提取可能的弱目标，进一步用假设检验分离出可能的弱目标。导出图像流约束方程，提出一种基于图像流和运动连续性分析的弱目标检测方法。该方法在强噪声背景和复杂背景下有良好的检测性能，计算机模拟实验检验了方法的性能。
In this paper, the high frequency image filter is used to remove the background interference, the possible weak targets are extracted, and the possible weak targets are further separated by hypothesis testing. The image flow constraint equation is derived and a weak target detection method based on image flow and motion continuity analysis is proposed. The method has good detection performance under strong noise background and complex background. The computer simulation experiment tests the performance of the method.