Photography measurement method of scene of a traffic accident

A technology of traffic accidents and photogrammetry, which is applied in the field of transportation, can solve problems such as occupancy, inability to meet the rapid processing of traffic accidents, and excessive time, so as to reduce processing time, reduce economic losses, and reduce troubles.

Inactive Publication Date: 2007-09-12
SHANGHAI JIAO TONG UNIV
View PDF0 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although compared with the traditional measurement method, the photogrammetry method can greatly shorten the investigation time of traffic accidents, but it will take a lot of ti

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Photography measurement method of scene of a traffic accident
  • Photography measurement method of scene of a traffic accident
  • Photography measurement method of scene of a traffic accident

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Below in conjunction with the accompanying drawings, the embodiments of the present invention are described in detail: the present embodiment is used in the traffic accident scene measurement of the traffic police detachment of Fengxian District, Shanghai under the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following example.

[0020] ①In this embodiment, the detachable calibration object is assembled first. Insert the three shafts shown in Figure 1 into the sleeve base, as shown in Figure 2, place the two yellow square tubes horizontally as the horizontal plane, and the black hollow tube vertically upwards as the Z axis.

[0021] ②When calibrating the scene of the traffic accident, as shown in Figure 3, the coordinate origin of the four identical calibration objects is used as the vertex to form a rectangular calibration system. The axes of the four calibration objects are on a st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Login to view more

Abstract

This invention relates to a traffic accident scene photogrammetry method. The process as follows: 1. adopt calibrating to calibrate photogrammetry, pack disjointed calibrating thing; 2. Take four same calibrating things origin of coordinate as peak to compose rectangle, to form one calibrating system, and realize the process of calibrating photogrammetry of a traffic accident scene. 3. Adopt camera according to clockwise travel direction and shooting angle to shot a set of two dimension photos of traffic accident scene that installed calibrating system. 4.admit the photo to calculator, select demand metrical point, gain the image space coordinate figure, came at needed metrical point space coordinates, and through geometric computation of the space coordinates to gain the information that required for drawn the scene of a traffic accident. This invention virtually reduce the time of investigate the scene of a traffic accident, advance measurement accuracy of field data, can satisfy the effective demand of traffic accident immediate processing.

Description

technical field [0001] The invention relates to a method in the technical field of transportation, in particular to a photogrammetry method for a traffic accident scene. Background technique [0002] In order to improve the accuracy of traffic accident identification, it is necessary to carefully investigate useful information such as vehicle parking positions, tire impressions and drag marks, road scratches, oil stains, debris, and indentations outside the road at the accident scene. Traditional traffic accident on-site survey work is completed by human eyes, hand touch, tape measurement, and manual drawing. This measurement method is not high in accuracy, takes a long time, and is easy to miss information, which cannot provide sufficient information for accident analysts. information. As the traffic becomes more and more busy, it is necessary to measure the traffic accident scene quickly and accurately. Therefore, experts from various countries are working hard to find ne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01C15/02G01C11/00
Inventor 金先龙杜新光张晓云刘军勇
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap