【作者】 楚国富；

【导师】 傅攀；

【作者基本信息】 西南交通大学 ， 测试计量技术及仪器， 2005， 硕士

【摘要】 早期的图像处理主要用于改善图像质量，随着计算机技术，图像采集技术的飞速发展，图像处理也越来越广泛的应用于解决众多科学与工程领域中的问题，诸如医学图像分析，指纹鉴定，产品质量检验等。由于计算机图像处理具有许多独特的优点，因而发展非常迅速，成为研究的热点。 火炮是重要的军工产品，火炮身管加工质量检测与控制意义重大。由于国内的火炮身管内壁以往都是人工用内窥镜来进行检测，检测效率低且容易受人工检测不稳定的影响。本研究项目研发了一种基于计算机数字图像处理技术的先进检测软件。用计算机来进行图形检测处理，不但效率高而且消除了人工的检测的不稳定性，并且可以进行图像连续拍摄存盘，以便人工存档检查。 通过对目标图片的拍摄，存盘，并经过计算机处理，实现了对故障图形的识别，并且在故障图形中又进行了分类，给出了具体的尺寸数量级。为了满足了工厂保存原始图片的要求，其图片以彩色形式保存，很好的再现了炮筒内壁的直观特征。在图片的处理过程中，为了便于人工手动观察，加入了直方图均衡化。我们还使用了摸板相减技术，这样不但消除了各种不确定的噪声来源，而且较好地分辨开了原图像的阴线与阳线的原有非故障图像特征。这种先进的火炮身管内壁数字检测技术具有较好的应用前景。更多还原

【Abstract】 With the development of computer and image acquisition technology, image processing extends its applying in improving quality of image to resolving problems in many fields of science and technology, such as medical image analysis, fingerprint identification, quality inspection of products, and so on. Because of many unique advantages of digital image processing, it develops very rapidly, and now is one of hotspots in modern technology research.As the image of the artillery’s inside berrel was checked by man for a long time in our country, its efficiency is low and the results are not reliable. This research project has developed an advanced inspecting process based on the digital image processing technique. The image inside the chamber was analysised by the computer. The efficiency is higher and the results are more stable and accurate. The image can be shot and saved continuously by the computer.Firstly, the aimed image is grasped and saved, then, the computer does carries out the image processing. At last, damage images are recognized.At the same time, damage images are devided into several types, and the sizes of the images are also provided. To meet the practical requirements, we saved the image as color image, and they can represent the real state of the workpiece’s surface very well. In the image processing process, a histogram processing method was applied , so the image can be checked by human being in a better way.We also used the moulding board subtracting method to remove the non-damage image features.This advanced digital inspecting technique for the canon’s inside berrel has a good practical applying prospect.更多还原