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The influence of motion sensor error on Image restoration from vibrations and motion

机译:运动传感器误差对振动和运动图像恢复的影响

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In this paper we investigate the influence of motion sensor errors on the derivation of the Modulation Transfer Function (MTF) and its implementation in image restoration. We present an analytical approach for estimating the vibration MTF from the measured system MTF by the frequency response of the sensors and their noise data. The goal of this research is to describe an automatic system of restoration of pictures blurred by vibration, and to consider its possible disadvantages. Our method is based on point-spread function verification by the data of motion sensor characteristics. We build an analytical model of the sensor and compare the MTF after sensor errors caused by noise of the system and wrong axis direction of the restoration device. Here, we assume that noise and signal are independent and noise of the system is white Gaussian noise. Some image restoration of degraded images is presented based on improvements of the original wiener filter. We compare performance of inverse and wiener filter operations and consider the dependence of restoration quality on the signal to noise ratio and angle between restoration axis and true vibration direction. There is an interesting and useful relationship in the final graphs. This article brings us to improvement of the initial method, as seen from our simulation. Some restorations of degraded images are presented based on improvements of the original wiener filter. The key to the restoration is determination of the improved optical transfer function unique to the image vibration and sensor characteristics.
机译:在本文中,我们研究了运动传感器误差对调制传递函数(MTF)推导的影响及其在图像恢复中的实现。我们介绍了一种分析方法,用于通过传感器的频率响应及其噪声数据估计测量系统MTF的振动MTF。该研究的目标是描述一辆通过振动模糊的图像的自动恢复系统,并考虑其可能的缺点。我们的方法基于运动传感器特性的数据的点传播功能验证。我们构建了传感器的分析模型,并在恢复装置的系统和错误轴方向的噪声引起的传感器误差后比较MTF。这里,我们假设噪声和信号是独立的,并且系统的噪声是白色高斯噪声。基于原始维纳滤波器的改进来呈现降级图像的一些图像恢复。我们比较逆和维纳滤波器操作的性能,并考虑恢复质量对恢复轴和真振方之间的噪声比和角度的依赖性。在最终图中有一个有趣和有用的关系。本文为我们提供了从我们的模拟所见的初始方法的改进。基于原始维纳滤波器的改进来呈现降级图像的一些修复。恢复的关键是确定图像振动和传感器特性的改进的光学传递函数。

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