ACCIDENT RECONSTRUCTION VIA DIGITAL CLOSE-RANGE PHOTOGRAMMETRY
ACCIDENT RECONSTRUCTION VIA DIGITAL CLOSE-RANGE PHOTOGRAMMETRY
复制标题
通过数字近距离摄影重建事故
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
C. Fraser
中科院分区：
文献类型：
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作者：
C. Fraser
随着空间信息分析的广泛应用，人们越来越意识到三维数据采集系统在交通事故重建和法医分析中的重要性。在事故重建等应用中，如果没有基础数据，GIS和CAD系统的实用性有限。数字近景摄影测量显示了许多属性，使其成为提供必要的3D测量数据的非常合适的技术。然而，将摄影测量应用于事故重建并非没有困难。这些包括适应通常非常差的、近平面的网络几何形状，以及对最大易用性的需求，由此而来的是对高度自动化处理和全自动相机校准的要求。本文集中在发展进行，以提高适用性的近景摄影测量和消费级数码相机的事故重建和法医测量。的发展包括一个新的方法，强大的在线图像定位和自动摄像机校准的方法，采用彩色编码的目标。通过参考用于近景摄影测量的iWitness系统来突出这些。
With the ever wider adoption of spatial information analysis, there has been an increasing awareness of the importance of 3D data acquisition systems to support traffic accident reconstruction and forensic analysis. In an application such as accident reconstruction, GIS and CAD systems have limited utility without the underlying data. Digital close-range photogrammetry displays many attributes which make it a well suited technology for the provision of the necessary 3D measurement data. The application of photogrammetry to accident reconstruction is not without difficulties, however. These include accommodation of the generally very poor, near-planar network geometries encountered and the need for maximum ease of use, from which follows the requirement for highly automated processing and fully automatic camera calibration. This paper concentrates upon developments undertaken to enhance the applicability of close-range photogrammetry and consumer-grade digital cameras to accident reconstruction and forensic measurement. The developments comprise a new approach for robust on-line image orientation and a method for automatic camera calibration which employs colour coded targets. These are highlighted through reference to the iWitness system for close-range photogrammetry.