崩溃,犯罪现场Rectification with the Leica BLK3D

我与意大利和整个欧洲的检察官办公室和辩护律师合作,进行了无数小时的法医映射,以造成撞车,碰撞,交通事故和犯罪现场。我领导了调查并提供了重建服务。

我很好地了解工作,记录和衡量碰撞或犯罪现场的程序和挑战以及收集证据。根据我在过去几十年中与全球不同的执法机构和法院专家的仔细合作,我知道,采用简单且经过验证的方法的最佳技术可以有很大的帮助,可以记录事件,尤其是当收集的证据是刑事或民事法院听证会的基本部分。

Many times, on scenes, painstakingly documenting and collecting evidence, for the sake of its comprehension and level of detail, I could have made the task quicker, safer and more efficient with handheld technology. Luckily today, the Leica BLK3D real-time, in-picture 3D measurement solution ensures evidence is holistically collected in the shortest possible time on scene to increase safety.


只需创建可交付数据

The BLK3D documents the scene with pictures. It also allows for extraction of required measurements from images, operating in the shortest time possible while ensuring the safety of the people present on the scene.

该设备在Android平台上运行BLK3D增强的软件功能,并且可以在几秒钟内直接显示。收集证据后,您可以向主管或远程办公室发送全面报告。仅遵循一个简单,直观和经过验证的程序,就不再需要执行手动测量,“弯曲在道路上”以延长胶带和exposing the operator to unnecessary risks.

使用BLK3D,捕获的每个图像都是完整而精确的3D测量记录。后来,在清除场景并且不再有可能重新访问之后,可以从及时冻结现场的图像中提取确切的度量信息,而不会丢失任何细节。

With the compact, all-in-one photogrammetry tool, you can:

  • 用图像记录场景和证据

BLK3D结合了经过校准的立体声摄像机,测量传感器,软件和设备边缘检测功能,以使用专业级的精度来制作图表测量。捕获的每个图像都是完整而精确的3D测量记录。

  • Acquire measurements on the collision scenes
    旨在使您的测量更快,更容易,您可以直接在可以使用BLK3D捕获的任何图片中进行测量。它将帮助您充分记录您的工作,包括备受制作的条件和项目进度。

  • Complete the report with at least a 2D scaled drawing of the accident scene
    很容易,只需拍摄图像和笔记并离开现场即可。BLK3D的技术允许您使用BLK3D手持设备来记录场景,以可提取测量有关碰撞现场的指标数据,例如,对象,地标,证据,车辆等。


只需创建碰撞场景的缩放2D图

有很多方法可以提供事件现场的2D图。例如,BLK3D包括激光测量能力(例如Disto™),以获取点对点测量。使用适配器,BLK3D可以用作一种“迷你总站”,以将数据导出到基于CAD的软件。

我们都同意,在最短的时间内,在事故现场记录尽可能多的细节至关重要。由于网站上的技术能力和时间限制,点对点方法可以迫使研究人员在忽略其他方面仅选择一些主要证据和点。

使用第三部分软件以纠正照片,PC级,让我们看一下如何创建此2D图。

The software allows the user to rectify photographs of surfaces that are close to being planar, such as roadway surfaces at accident scenes. As a result of the rectification, an image view normal to the surface (a plan view for horizontal surfaces) is created. Even when no measurements have been taken at the time of an incident, the reconstructionist can obtain enough dimensional data to rectify photographs.

The unique functionality of the BLK3D allows the user to extract from the device’s photogrammetry measurements of painted lines, markers or other long-lasting roadway features that appear in the original photographs. I've done some test comparing the results of using BLK3D and PC-Rect and some measurements taken using the Leica BLK360 imaging laser scanner. The outcomes are summarized as follow:

  • No significant errors
    根据该实验的条件和方法,在测试方案中,结果显示出使用BLK3D可读的距离之间没有明显的误差,并且使用BLK360可读的距离距离没有明显的误差Leica Jetstream观众.

  • Matching accuracy
    由于整流化,使用BLK3D和PC-rect软件的过程,对PC矩形图像进行的测量(视表面正常)进行了相同的准确度。

  • Acceptable accuracy
    The experiment has also shown an acceptable grade of accuracy for what concerns the evidence, the details, and the dimensional data on the 2D scaled image delivered from PC-RECT.

事故调查和事件重建是轻松的,而无需使用BLK3D牺牲准确性。借助全球验证的事故调查软件,例如PC-RECT,该领域是探索的主要内容。

For the test results and more information on accident and collision investigation tools,contact us.


As a longstanding Forensic Expert, and the first ACTAR (Accreditation Commission for Traffic Accident Reconstructionists) specialist accredited in Europe with a focus on crime and crash scene forensic mapping and traffic accident reconstruction, Ivan Macella (BEng., ACTAR) is the forensic business development manager for Hexagon’s Geosystems division in Europe.

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崩溃和碰撞调查

即使在具有挑战性的条件下,也可以快速记录2D或3D的崩溃场景
即使在具有挑战性的条件下,也可以快速记录2D或3D的崩溃场景

与我们一起创建您的法医数字双胞胎!

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Our blog articles explain how our geospatial technologies work in Public Safety applications.

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