A method for fast and automatic generation of road and vehicle scene elements based on point cloud height projection
A height and projection technology, applied in the application field of 3D point cloud analysis technology, can solve the problems of inaccurate secondary measurement accuracy, manual placement of graphic symbol models at the scene of traffic accidents, and heavy measurement workload, so as to shorten the drawing time, Achieve automation and intelligence, improve the effect of accuracy
Active Publication Date: 2020-05-12
广西公安计算机通讯技术研究所 +1
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[0011] Aiming at the deficiencies of the prior art, the technical problem solved by the present invention is how to solve the problems of heavy measurement workload, manual placement of graphic symbol models at the scene of traffic accidents, and inaccurate secondary measurement accuracy when dealing with traffic accident scenes
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[0033] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples, but the present invention is not limited.
[0034] figure 1 A flow chart of the present invention is shown, a method for quickly and automatically generating road surface and vehicle scene elements based on point cloud height projection. The accident scene is photographed and collected by a photographing device with data transmission function, and the data is transmitted to the server. The server The automatic generation technology of the plan based on the point cloud data can automatically draw the outline of the object in the plan and objectively fix the relative positional relationship between the objects, including the following steps:
[0035] (1) The operator arrives at the scene of the road traffic accident;
[0036] (2) Place markers at the scene of the road traffic accident, and take this as a reference point, and take pic...
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The invention discloses a method for quickly and automatically generating road surface and vehicle scene factors based on point cloud height projection. The method comprises the steps of carrying outphotographing and acquisition on an accident scene by using a photographic device having a data transmission function, transmitting data to a server, automatically drawing contours of objects in a planar graph by means of the server through adopting a planar graph automatic generation technology based on point cloud data, and fixing relative position relations among the objects in an objective manner. Through adopting the method disclosed by the invention, manual measurement, scaling and picture uploading are not needed, the drawing time is significantly shortened, the automatic and intelligent processing of the accident scene is realized, and the working efficiency is improved.
Description
technical field [0001] The invention relates to the application field of three-dimensional point cloud analysis technology, in particular to a method for quickly and automatically generating road surface and vehicle site elements based on point cloud height projection. Background technique [0002] Most of the traffic police at home and abroad use computer-aided CAD to draw the plan in the traffic accident scene survey. The existing computer-aided work flow for drawing road traffic accident scene maps: the traffic police use a tape measure and a laser range finder to measure the scene, use AutoCad and other computer drawing auxiliary software, and draw the scene according to the proportion by placing graphic symbol models of the traffic accident scene such as vehicles picture. The distance measurement work of this method relies on manual work, the measurement workload is large, and the measurement accuracy is affected by the level of the operator. At the same time, the draw...
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IPC IPC(8): G01B11/00G01B11/24
Inventor 廖炜斌叶显文范苗苗周伟霖区杰符琳冷佳迅郭勇黄犀农丝静张海盛伍世宁沈雪飞韦永忠李克劭
Owner 广西公安计算机通讯技术研究所