| 制动踏板行程视觉测量系统研究 |
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| 引用本文： | 王畅,付锐,彭金拴. 制动踏板行程视觉测量系统研究[J]. 计算机测量与控制, 2011, 19(8) |
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| 作者姓名： | 王畅 付锐 彭金拴 |
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| 作者单位： | 长安大学汽车学院,陕西西安,710064 |
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| 基金项目： | 国家道路交通安全科技行动计划(2009BAG13A05) |
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| 摘 要： | 针对驾驶行为研究过程中的需求,设计并实现了基于机器视觉的制动踏板行程测量系统;系统采用1394接口摄像机从左侧对制动踏板进行图像采集,对图像进行滤波、自适应二值化、边缘提取之后得到制动踏板的边缘图像,采用Hough变化和最小二乘法结合的方法拟合提取制动踏板特征直线的方程,与空载状态下的特征方程计算得到制动踏板的转动角度θ并结合制动踏板运动半径计算得到制动踏板行程;精度验证试验结果表明:系统的测量相对误差控制在±3%以内,满足进行驾驶行为进行研究的要求。
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| 关 键 词： | 制动踏板行程 视觉测量 边缘提取 Hough变换 最小二乘法 |
Research of Brake Pedal Displacement Measuring System |
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| Wang Chang,Fu Rui,Peng Jinshuan. Research of Brake Pedal Displacement Measuring System[J]. Computer Measurement & Control, 2011, 19(8) |
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| Authors: | Wang Chang Fu Rui Peng Jinshuan |
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| Affiliation: | Wang Chang,Fu Rui,Peng Jinshuan(School of Automobile,Chang'an University,Xi'an 710064,China) |
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| Abstract: | Aiming at the requirements of driving behavior research,brake pedal displacement measuring system based on machine vision was designed and realized.This system used a camera to capture images of brake pedal from the left side and images were transmitted to image processing computer by IEEE 1394 image capture card.Edge image of brake pedal can be gained after the image processing program carried out smoothing filtering,adaptive binary and edge extraction for original images of brake pedal,then the image proc... |
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| Keywords: | displacement of brake pedal vision measurement edge extraction Hough transform least square method |
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