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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >A method of reproduction of corroded steel surface by image-based measurement and its application to the maintenance
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A method of reproduction of corroded steel surface by image-based measurement and its application to the maintenance

机译：一种基于图像的腐蚀钢表面复制方法及其在维修中的应用

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摘要

As for the existing steel structures, measurement of corroded surface configuration is important to estimate the remaining load-carrying capacity. In this study we selected image-based measurement as a method of measurement of corroded steel surface, and tried to reproduce the corroded surface configuration by ordinary method using two pictures taken from two directions. However we needed to set gauge points on the corroded surface to find the identical points on the two pictures, and confirmed that this method couldn't be applied to the practical maintenance. Next, we examined and proposed a new method of projecting photo-marking points on the corroded surface from one direction by using a projector, and taking a picture from another direction with digital camera. We confirmed that we could project photo-marking points easily with a projector, and reproduce the corroded steel surface configuration sufficiently and accurately.
机译：对于现有的钢结构，腐蚀表面形状的测量对于估算剩余的承载能力很重要。在这项研究中，我们选择基于图像的测量作为腐蚀的钢表面的测量方法，并尝试使用从两个方向拍摄的两张图片，通过常规方法重现腐蚀的表面形态。但是，我们需要在腐蚀的表面上设置量规点，以便在两张图片上找到相同的点，并确认该方法无法应用于实际维护。接下来，我们研究并提出了一种新的方法，该方法是使用投影仪从一个方向在腐蚀的表面上投影照片标记点，然后使用数码相机从另一个方向进行拍照。我们确认，我们可以使用投影仪轻松投影照片标记点，并充分，准确地再现腐蚀的钢表面结构。

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