提出一种基于Real Sense技术的足部参数测量方法,仪器装置携带方便、成本低廉、操作简洁;该算法运用Intel Real Sense技术,搭建了使用多台SR300的足型重建系统;该系统首先将从深度图像中获取的各个足面轮廓点云在系统规定世界坐标系内...提出一种基于Real Sense技术的足部参数测量方法,仪器装置携带方便、成本低廉、操作简洁;该算法运用Intel Real Sense技术,搭建了使用多台SR300的足型重建系统;该系统首先将从深度图像中获取的各个足面轮廓点云在系统规定世界坐标系内叠加融合,然后用ICP算法进行精准配准完成对点云的融合,最后得到完整足部轮廓点云并根据定义计算足部围度等足部系列参数;在进行重建的过程中运用纹理贴图技术进行渲染,得到3D图像;实验表明,该系统能够快速精确地完成三维脚型恢复和足部特征参数的提取,具有很好的鲁棒性。展开更多
There currently does not exist in industry a reliable method for the detection of rail foot flaws.Like their head-based counterparts,foot flaws result in broken rail with potentially catastrophic consequences.A propos...There currently does not exist in industry a reliable method for the detection of rail foot flaws.Like their head-based counterparts,foot flaws result in broken rail with potentially catastrophic consequences.A proposed area of research for the detection of these flaws is thermography,a non-contact method of measuring and analysing infrared emissions from an object under test.In industry,active excitation thermography is the most common,requiring an excitation source.This paper will present a temperature measurement system and a method of transient temperature extraction from the running rails for the effects of a passing train to evaluate heat transfer in the practical rail environment.The outcomes of these results will provide future direction in the development of a rail heat transfer model and determine if train passage provides enough active excitation for a thermography-based detection technique.展开更多
文摘提出一种基于Real Sense技术的足部参数测量方法,仪器装置携带方便、成本低廉、操作简洁;该算法运用Intel Real Sense技术,搭建了使用多台SR300的足型重建系统;该系统首先将从深度图像中获取的各个足面轮廓点云在系统规定世界坐标系内叠加融合,然后用ICP算法进行精准配准完成对点云的融合,最后得到完整足部轮廓点云并根据定义计算足部围度等足部系列参数;在进行重建的过程中运用纹理贴图技术进行渲染,得到3D图像;实验表明,该系统能够快速精确地完成三维脚型恢复和足部特征参数的提取,具有很好的鲁棒性。
基金The work was supported by the Australasian Centre for Rail Innovation under its HH01B—Evaluating infrared imaging and laser ultrasonics as detectors of rail foot flaws project.
文摘There currently does not exist in industry a reliable method for the detection of rail foot flaws.Like their head-based counterparts,foot flaws result in broken rail with potentially catastrophic consequences.A proposed area of research for the detection of these flaws is thermography,a non-contact method of measuring and analysing infrared emissions from an object under test.In industry,active excitation thermography is the most common,requiring an excitation source.This paper will present a temperature measurement system and a method of transient temperature extraction from the running rails for the effects of a passing train to evaluate heat transfer in the practical rail environment.The outcomes of these results will provide future direction in the development of a rail heat transfer model and determine if train passage provides enough active excitation for a thermography-based detection technique.
