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Segmentation of Indoor Mapping Point Clouds Applied to Crime Scenes Reconstruction

机译:室内地图点云分割在犯罪现场重构中的应用

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摘要

Data acquisition in forensics science must be performed in a fast and an efficient way, so that the data acquired is maximized at the same time that disturbance and time on the scene are minimized. For this reason, the use of indoor mapping systems appears as a key solution, in contrast with static systems, either laser or photogrammetry based, in which representing big and complex scenes requires acquisition from a high number of positions, and long-time dedication for data processing. This paper presents a methodology for the segmentation of point clouds acquired with a mobile indoor mapping system, and their conversion to 3-D models in CAD format, based on parameterized geometric elements from the scene. This way, all the information required in forensic sciences is stored in an adequate digital format, enabling its availability in the future, and minimizing time dedication in both data acquisition and processing steps.
机译:取证科学中的数据采集必须以快速有效的方式执行,以便在最小化现场干扰和时间的同时,最大化采集到的数据。因此,与基于激光或摄影测量的静态系统相比,使用室内制图系统似乎是关键解决方案,在静态系统中,代表大型复杂场景需要从大量位置获取,并且需要长期投入数据处理。本文提出了一种基于移动室内制图系统的点云分割方法,并基于场景中的参数化几何元素将其转换为CAD格式的3-D模型。这样,法医科学所需的所有信息都以适当的数字格式存储,从而使其在将来可以使用,并在数据采集和处理步骤中将时间花费最小化。

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