Traffic accident field surveying instrument based on active omnidirectional visual sensor

Abstract

The invention discloses a traffic accident field surveying instrument based on an active omnidirectional visual sensor. The traffic accident field surveying instrument comprises an omnidirectional visual sensor, an omnidirectional planar laser light source, a GPS (Global Position System) sensor, a compass and a microprocessor, wherein the GPS sensor is used for positioning the traffic accident scene and automatically generating the road plane graph, the compass is used for fixing the measurement direction, and the microprocessor is used for performing three-dimensional image pickup measurement on the panoramic picture of the omnidirectional visual sensor and performing visualized recovery and digital three-dimensional representation of the traffic accident scene. A system application software is used for automatically picking up a panoramic picture of the traffic accident scene, automatically measuring geometrical data of vehicles, objects, traces and the like on the scene, automatically outputting field record diagram, the field scale map, the field sectional view, the field vertical view and the field analysis chart and providing a traffic accident field surveying method. The traffic accident field surveying instrument has the advantages of high environment applicability, high measurement speed and accuracy, high automation degree and can be used for performing visualized recovery and digital three-dimensional representation of the traffic accident scene.

Description

technical field [0001] The invention belongs to the application of optical technology, laser semiconductor technology, panorama photogrammetry technology and digital image processing technology in site surveying and mapping of traffic accident treatment. Background technique [0002] Today, most of the traffic police at home and abroad still use a large number of manual operations in the survey of traffic accident sites. Manual operations mainly rely on traditional methods such as human eye judgment, hand touch, tape measurement, and manual drawing. There are mainly defects in the following aspects: 1) In terms of measurement data, phenomena such as missed measurement, wrong measurement, missing drawing, and wrong drawing occur from time to time; 2) Various restrictions in the measurement process, traffic accidents occur in rainy snow, Foggy weather and night will bring great difficulties to the site survey. There are higher requirements for dealing with traffic accidents on...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of the existing surveying and mapping instruments at the scene of traffic accidents, such as complex calculation, poor applicability, large measurement error, and low degree of automation, the present invention provides a method that simplifies the complexity of calculation, omits the work of camera calibration, has strong environmental applicability, and measures A fast and accurate traffic accident scene surveying and mapping instrument based on active panoramic vision sensor capable of visual restoration and digital stereo reproduction of the accident scene

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