MATLAB干涉仪的图像质量评价方法研究
毕业论文关键词 移相干涉仪 图像特征 参数提取 MATLAB
Title The research of the evaluation to the images from the interferometers
Abstract With the advancements of the technology, the measuring methods to optical interference measurements is updating every moment. Due to the booming of the phase-shifting interferometers, the requirement of the accuracy of the measuring is being highly ruled. As a result, how to evaluate the interference images is purposed in the research, which is to the advantage of decreasing the errors and distinguishing by human’s eyes. Utilizing mathematical methods to analyze characteristic parameter of images from different kinds of interferometers by using MATLAB software, we can get perse algorithms and codes of the different image features. Meanwhile, to obtain different data, a large number of images have been collected from many types of interferometers. We compare the data gathered from various interferometers range from high-quality to low-quality as well as define the reasonable range of threshold of these images features. Finally, we obtain the means to evaluate the quality of the images from the interferometers.
Keywords phase-shifting interferometer image features MATLAB parameter extraction
目次
1 绪论. 1
1.1 研究背景. 1
1.3 课题主要工作. 4
2 干涉仪图像评价研究的相关理论. 5
2.1 斐索型移相干涉仪原理. 5
2.2 移相干涉仪原理公式. 7
2.3 人眼的可见度阈值和对比灵敏度. 8
2.4 干涉仪图像处理介绍. 9
2.5 干涉仪图像特征参数 10
2.6 本章小结 12
3 使用MATLAB的实验应用. 13
3.1 干涉图像特征参数提取算法介绍 13
3.1.1 干涉图有效区域的提取 13
3.1.2 干涉图像面特征算法 15
3.1.3 干涉图像线特征算法 17
3.1.4 干涉图像点特征算法 19
3.2 基于MATLAB进行的干涉图像特征参数的实验. 22
3.2.1 标准参考干涉图像的数据提取及阈值确定 23
3.2.2 其他干涉仪图像的算法实验和相关阈值的修改 24
3.3 干涉仪图像截图 26
3.4 本章小结 29
结论. 31
致谢. 32
参考文献. 33
1 绪论 本章分为三个部分，分别为课题研究的相关背景，国内外干涉仪的发展历史和趋势以及本课题的主要工作介绍，是人们了解本课题的存在价值和使用意义，以及研究的大体方向。
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