Background Reflection Removal Using V-SLAM or SfM in the Infrared Measurement of Building Outer Wall Planes
Background Reflection Removal Using V-SLAM or SfM in the Infrared Measurement of Building Outer Wall Planes
复制标题
在建筑物外墙平面的红外测量中使用 V-SLAM 或 SfM 去除背景反射
DOI：
10.11396/jjsndi.71.422
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
内田勇治，横田 太，出崎翔大，塩澤大輝，阪上隆英
中科院分区：
文献类型：
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作者：
Yi-Xin Liu;Cheng-Cheng Zhang;Run-Zi Wang;Kai-Ming Zhang;Ji Wang;Shu-Lei Yao;Hao Chen;Xian-Cheng Zhang;Hideo Miura;越智 申久，天石 敏郎，平島 禎，渋谷 陽二;内田勇治，横田 太，出崎翔大，塩澤大輝，阪上隆英
建筑结构采用瓷砖和砂浆施工等外部饰面，以达到骨架保护和美观的目的。外墙上的混凝土块和瓷砖可能会因初始缺陷或老化而掉落。为了防止这种情况，通过目视外观检查或敲击方法进行检查。这些方法存在很多问题，例如需要高空作业平台以及检查人员的技能水平影响诊断准确性。因此，能够远程检查和记录的被动红外热成像方法受到关注。然而，在该方法中，存在太阳光线和周围建筑物的背景反射分量导致测量精度下降的问题。在本文中，我们提出了一种通过使用 V-SLAM 或 SfM 恢复红外热成像的三维轨迹、到被拍摄物体的距离以及表面方向来去除或抑制背景反射分量的方法。此外，在实验室实验中，证实将该方法应用于具有背景反射的红外热成像图像可以去除或抑制背景反射分量。
Exterior finishes such as tiles and mortar construction are applied to the building structures for the purpose of skeleton protection and aesthetics. Concrete pieces and tiles on the outer wall may fall due to initial defects or aging. In order to prevent this, inspections are performed by visual inspection of the appearance or tapping method. These methods have many problems, such as the need for aerial work platforms and the skill level of the inspector affecting the diagnostic accuracy. Therefore, the passive infrared thermography method, which enables remote inspection and recording, is attracting attention. However, in this method, there is a problem that the background reflection component of the sun rays and surrounding buildings causes a decrease in measurement accuracy. In this paper, we proposed a method to remove or suppress background reflection components by restoring the three-dimensional trajectory of an infrared thermography, the distance to the object to be photographed, and the direction of the surface using V-SLAM or SfM. Moreover, in the laboratory experiments, it was confirmed that the background reflection component can be removed or suppressed by applying this method to infrared thermography images with background reflection.