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在法医实践中使用的地面激光扫描仪的性能测试的文档标准:评估仪器精度变化的统计程序

Mary Gregg¹, Bala Muralikrishnan², Meghan Shilling²

¹Statistical Engineering Division, National Institute of Standards and Technology, Boulder, Colorado, USA.

Journal of forensic sciences

|January 7, 2026

概括

这项研究为法医从业人员介绍了一种具有成本效益的方法,以评估陆地激光扫描仪 (TLS) 随时间的推移的精度. 开发的统计程序确保了犯罪现场调查和重建的可靠性能.

科学领域:

法医科学法医科学法医科学
计量学计量学计量学
仪器性能测试仪器性能测试

背景情况:

犯罪现场调查和重建 (CSIR) OSAC法医科学小组委员会确定需要对地面激光扫描仪 (TLS) 进行标准化性能评估.
评估TLS性能的现有方法并不总是具有成本效益,简洁或灵活,以供法医从业者常规使用.
确保TLS仪器的长期精度对于可靠的法医数据收集至关重要.

研究的目的:

开发和详细介绍一个统计方法来评估TLS点坐标精度随时间变化的变化.
为法医从业人员提供一个廉价,简洁,灵活的临时绩效评估测试.
在法医科学中为TLS性能测试的文档标准的开发做出贡献.

主要方法:

开发一个统计测试程序来评估TLS点坐标精度的时间稳定性.
将统计方法应用于纵向TLS数据集的应用.
用两个不同的案例说明测试程序.

主要成果:

拟议的统计方法有效地评估了TLS仪器精度是否随着时间的推移发生了显著变化.
纵向数据分析证明了开发的测试程序的实际应用和实用性.
测试程序为TLS仪器的质量保证提供了定量衡量.

结论:

开发的临时绩效评估程序是法医从业人员监测TLS精度的宝贵工具.
这种统计方法提高了法医科学应用中的仪器质量保证.
该程序的灵活性和成本效益支持其用于例行TLS性能评估.

关键词:

犯罪现场调查调查犯罪现场调查犯罪现场重建犯罪现场重建文档标准文档标准文档标准文档标准仪器校准仪器的校准方法仪表精确度是指仪表的精确度.绩效评估的绩效评价是指绩效评估的结果.质量保证质量保证质量保证陆地激光扫描仪扫描仪

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