دانلود رایگان مقاله بازسازی صحنه تصادف 3D با تکنیک تصویربرداری کم هزینه

Abstract

This research is about the implementation of close range photogrammetry (CRP) technique to investigate the traffic accident scene. CRP technique representing and measuring the 3D objects using data stored in 2D photographs. It is non-contact measurement requiring multiple pictures capture to measure objects of interest. Currently, a police officer uses a conventional technique to collect data on traffic accident scene using tape measurement in order to reconstruct the accident scene. The development of camera technology increases the efficiency, stability of consumer grade digital cameras for photogrammetric applications. This development can help police officer to apply a CRP technique for data collection on traffic accident scene. CRP technique offers fast data acquisition, and only need one officer during data capture. This research is to investigate traffic accident scene using the imaging technique. The methodology of this research used a measuring tape and total station for data acquisition on traffic accident scene. This research also evaluates the accuracy of data based on mathematical model standard deviation and root mean square error (RMSE). Based on this research, the implementation of CRP in accident reconstruction is very effective because can achieve a cm-level accuracy in range 40 m traffic accident scene.

4. Conclusion and future work

As a conclusion, the close-range photogrammetry technique is suitable to use in road accident investigations, with an aid of software that specially built for a road accident investigation. This can help the user like police officers to collect an evidence or data on traffic accident scene. Based on the first objective, to construct a 3D accident reconstruction using close range photogrammetry, this objective achieved after the end of this dissertation with a 3D simulation of traffic accident scene in simulation software. The objective is to analyze 3D accident reconstruction. This objective is achieved based on the method of analysis that divided into two methods. Firstly using mathematical formula standard deviation to define the dispersion of the sample data, and RMSE is to indicate the accuracy of the data. This analysis is differences between two instruments of data acquisition, measurement tape and total station. Secondly, analysis of 3D simulation of traffic accident scene in simulation software with defines the limitations, and advantages of the software.