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Method of evaluating the influence of features of primary road greenbelts upon the visual sense of a driver

A driver and green belt technology, applied to instruments, character and pattern recognition, computer components, etc., can solve the problem of lack of driver's visual effect evaluation

Active Publication Date: 2018-07-20
南京柏博交通科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the research on urban green belts related to road traffic safety has mainly focused on the analysis of color and monotony, and lacks the evaluation of the driver's visual effect.

Method used

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  • Method of evaluating the influence of features of primary road greenbelts upon the visual sense of a driver
  • Method of evaluating the influence of features of primary road greenbelts upon the visual sense of a driver
  • Method of evaluating the influence of features of primary road greenbelts upon the visual sense of a driver

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Experimental program
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Embodiment Construction

[0037] 1. Composition of the evaluation system

[0038] 1.1 Evaluation object

[0039] This method is suitable for evaluating the indicators that are visible, measurable (including direct or indirect method measurement or estimation), comparable and quantifiable in the driver's first perspective of the typical arterial green belt, and the indicators need to be evaluated by the driver. Produce some visual stimulation. For example, the height of the green belt, the width of the crown, the visibility of the trunk, the proportion of the sky, the distance between the plants, etc.

[0040] 1.2 Required instruments and personnel

[0041] 1) Hardware equipment: camera; laser rangefinder; reflector; meter ruler; color card; eye tracker (TobiiGlasses can be used), etc.

[0042] 2) Analysis software: SPSS; ErogLAB (note: this product is the supporting software for Tobii Glasses eye tracker in Sweden); EXCEL, etc.

[0043] 3) Required personnel: There are several experienced drivers, ...

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Abstract

The invention relates to a method of evaluating the influence of features of primary road greenbelts upon the visual sense of a driver. The method includes the following steps: a driver wears an eye tracker and drives a vehicle, and the eye tracker records video and records eye movement conditions of the driver; the video is input to eye tracker analysis software, a trunk visibility interest zone,a crown width interest zone, a tree height interest zone, a tree shape interest zone, a sky proportion interest zone and the like are divided, the viewing point number of each interest zone is analyzed and output, and a proportion of the viewing point number of one interest zone corresponding to a certain specific greenbelt index to the viewing point number of all indexes is taken as a feature value; a relation between an influence value y of greenbelt indexes and all greenbelt index values is constructed, wherein y=a1nx1+bx2+cx3+dx4+ex5+fx<6><2>+g, x1 is a height value, x2 is a tree shape index value, x3 is a ratio of the crown width to the road width, x4 is a sky proportion, x5 is a trunk visibility index value, and x6 is a plant spacing value; and independent variables (i.e., greenbeltindex values xi and corresponding feature values yi) are input to SPSS software, and undetermined constants a, b, c, d, e, f and g are solved.

Description

technical field [0001] The invention relates to a method for evaluating the visual impact of a trunk road green belt on a driver, and belongs to the technical field of road traffic safety. Background technique [0002] According to the survey, the number of urban traffic accidents has been on the rise in recent years. Statistics show that the traffic accident rate caused by the comprehensive factors of the driver and the environment accounts for about 1 / 3, and 90% of the driving information of the driver is obtained through vision. , while the area of ​​green belts on urban roads accounts for a large proportion in the first perspective of driving, the green belts on urban arterial roads, as a hidden factor affecting urban road traffic safety, are often ignored. For a long time, the research on urban green belts related to road traffic safety has mainly focused on the analysis of color and monotony, and lacks the evaluation of the driver's visual effect. Therefore, it is nec...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V20/56
Inventor 盛玉刚宋婉璐王奎元董雪妮
Owner 南京柏博交通科技有限责任公司