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Retracing Positions of Terrestrial Laser Scanners to Reinstate Legacy Point Clouds

机译:陆地激光扫描仪恢复植物遗传点云的定位

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Laser scanners provide a mostly geometric representation, but further details can be collected by analysing the recording setup. While the recording configuration is needed in post-processing, it is generally not passed on to the engineers as most scans are created by surveyors and handled by subcontractors. This disconnection between the consumer and the creator can be observed by the fact, that most laser scanned point clouds include intensity information. In day to day use, the intensity information serves as a substitute for colour as it provides contrasts between different objects in the recording. However, from the technical perspective the intensity is the result of the recording device interacting with the surface. This interaction should not be used for automation as different recording setups may result in different interactions and outcomes. Facing this problem, we propose a mechanism to enrich terrestrial laser scans by recreating original scan parameters and further converting the intensity to reflectivity - a sole property of the recorded surface.
机译:激光扫描仪提供最多几何表示,但可以通过分析录制设置来收集进一步的细节。虽然在后处理中需要录制配置,但通常不会被传递给工程师,因为大多数扫描由测量师创建并由分包商处理。通过该事实可以观察到消费者和创建者之间的断开连接,即大多数激光扫描点云包括强度信息。在日常使用时,强度信息用作颜色的替代,因为它提供了录制中不同对象之间的对比。然而,从技术角度来看,强度是与表面相互作用的记录装置的结果。由于不同的记录设置可能导致不同的交互和结果,因此不应使用自动化进行自动化。面对这个问题,我们提出了一种通过重建原始扫描参数来丰富陆地激光扫描的机制,并进一步将强度转化为反射率 - 记录表面的唯一属性。

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