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本文介绍运动退化图象的一种复原方法,运动退化就是指在曝光过程中成像系统与景物间的相对运动引起的图象失真。这时景物f与退化图象g之间的关系为: g=h*f其中h是描述运动的点扩散函数。本文首先讨论运动退化的一般数学表达式,然后用离散形式的点扩散函数去构造一个描述运动退化的系统,由此得到一个用于递归复原的逆系统。本文根据能量守恒原理对该系统进行了一些改进,并对在曝光期间[0,T]内水平方向上的匀速运动和加速运动情况下逆系统的稳定性进行了分析。还讨论了量化噪声对复原图象的影响。最后根据有关的递难关系在计算机上进行了模拟。
This article describes a method of restoring motion-degraded images that refers to image distortion caused by the relative motion between the imaging system and the subject during exposure. Then the relationship between the scene f and the degraded image g is: g = h * f where h is the point spread function describing the motion. In this paper, we first discuss the general mathematical expression of motion degeneration, and then use a discrete form of point spread function to construct a system that describes motion degeneration. This results in an inverse system for recursive restoration. In this paper, some improvements have been made to the system based on the principle of energy conservation, and the stability of the inverse system in the horizontal direction during constant exposure and the accelerated movement in the direction of [0, T] are analyzed. The effect of quantization noise on the restored image is also discussed. Finally, according to the relevant relationship between delivery on the computer simulation.