Vehicle collision angle analysis system based on three-dimensional reconstruction technology

A vehicle collision and three-dimensional reconstruction technology, applied in the field of vehicle collision angle analysis system, can solve problems to be improved and achieve the effect of accurate data

Active Publication Date: 2016-03-09
TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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Problems solved by technology

At present, domestic and foreign related patents and research on vehicle collisions provide ideas for accident reproduction. There are few studies on how

Method used

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  • Vehicle collision angle analysis system based on three-dimensional reconstruction technology
  • Vehicle collision angle analysis system based on three-dimensional reconstruction technology
  • Vehicle collision angle analysis system based on three-dimensional reconstruction technology

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Embodiment Construction

[0025] The present invention will be further described below with reference to the specific drawings and embodiments.

[0026] The present invention first proposes a vehicle collision angle analysis system based on three-dimensional reconstruction technology, such as figure 1 As shown, the system includes a data acquisition module 10, which is used to quickly collect the deformation data of the collision vehicle at the scene of the traffic accident. The data acquisition sensors are three-dimensional laser scanners and digital cameras; the three-dimensional point cloud data preprocessing module 20 has built-in three-dimensional point cloud data. The noise reduction processing algorithm and the simplified processing algorithm are used to preprocess the data collected by the data acquisition module 10; the point cloud data reconstruction module 30 is used to triangulate the three-dimensional point cloud data to realize the reconstruction of the point cloud data , adopts the delau...

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Abstract

The invention provides a vehicle collision angle analysis system based on a three-dimensional reconstruction technology. The vehicle collision angle analysis system comprises a data collection module, wherein a three-dimensional laser scanner and a digital camera are utilized for point cloud data collection, the data is more accurate, and mapping processing of pictures is completed; a three-dimensional point cloud data preprocessing module, wherein data de-nosing and data reduced processing are carried out, and original data points which are redundant and have much noise are processed simply; a point cloud reconstruction module, wherein a delaunay algorithm is applied, triangulation is carried out on the data after the preprocessing, and deformed surfaces are reconstructed; a normal vector resolving module which is capable of solving normal vectors of each small triangle after the triangulation; and a vehicle collision angle analysis module which utilizes a least square method to fit a collision angle of a vehicle based on the normal vectors solved by the normal vector resolving module. According to the invention, rough collision angles in traffic accidents such as a vehicle-vehicle collision, a vehicle-human collision and a vehicle-object collision can be analyzed, and ideas are provided for morphological analysis of the traffic accidents.

Description

technical field [0001] The invention relates to the field of close-range photogrammetry and digital image processing, in particular to a vehicle collision angle analysis system based on three-dimensional reconstruction technology. Background technique [0002] Road traffic accidents occur frequently in my country, and the fatality rate of road traffic accidents remains high. Statistics show that in 2013 alone, my country received 5.987 million reported road traffic accidents, involving 198,394 road traffic accidents involving casualties, resulting in 58,539 deaths and direct property losses of 1.04 billion yuan. As the most important link in the legal handling procedures of traffic accidents, traffic accident scene investigation requires timely, rapid, meticulous, complete, objective and comprehensive investigation of the accident scene to provide accurate, fair and objective data and images for subsequent accident handling. It is convenient for the three-dimensional reprod...

Claims

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Application Information

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IPC IPC(8): G06T17/00
Inventor 李平凡宋耀鑫高岩黄钢李毅郝会龙
Owner TRAFFIC MANAGEMENT RES INST OF THE MIN OF PUBLIC SECURITY
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