Traffic accident scene surveying instrument based on active, stereoscopic and omnibearing vision

Abstract

The invention relates to a traffic accident scene surveying instrument based on active, stereoscopic and omnibearing vision, which comprises an omnibearing vision sensor, a laser full-view structure light generator, a connecting bracket, a GPS sensor and a microprocessor, wherein the omnibearing vision sensor is provided with a fixed view point; the laser full-view structure light generator is provided with a fixed light-emitting center point; the GPS sensor is used for positioning a traffic accident scene and automatically generating a road plane figure; the microprocessor is used for carrying out road traffic accident scene figure drawing on an image of the omnibearing vision sensor; the fixed view point of the omnibearing vision sensor and the fixed light-emitting center point of the laser full-view structure light generator are arranged on the same axis; and the microprocessor comprises an LD light source control unit, a video image reading module, a shooting point position information acquiring module, a preset road plane map generating module, a direction and position information analyzing module, a scene video image processing module, a space position information calculatingmodule of all measurement points and a scene accident figure generating module. The invention simplifies the complexity of calculation, omits the calibration work of a camera and has high environmental applicability and rapid and accurate measurement.

Description

technical field [0001] The invention belongs to the application of optical technology, laser semiconductor technology, photogrammetry technology and computer vision technology in the field 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 Foggy weather and night will bring great difficulties to the site survey. There are higher requirements for dealing with traffic accidents on expressways, eleva...

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, and large measurement errors, the present invention provides an active-based system that simplifies the complexity of calculation, omits camera calibration work, has strong environmental applicability, and measures quickly and accurately. Stereo-omnidirectional traffic accident scene surveying and mapping instrument

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