CAJ | 학술논문

对结构件视觉测量的工程应用、检测模型进行讨论，提出一种双目视觉检测结构件空间尺寸的方法。应用改进的求解摄像机内外参数的方法对单摄像机有效焦距进行标定，应用以像素坐标到对应的极线距离为目标函数的优化方法对基本矩阵进行了估算，通过对本质矩阵的奇异值分解得到两个摄像机之间的旋转矩阵和平移向量。实验室条件下对轻型车凸轮轴凸轮间距空间尺寸进行了实际测量，结果表明，测量方法能够达到监测组合式凸轮轴凸轮间距的要求。
대결구건시각측량적공정응용、검측모형진행토론，제출일충쌍목시각검측결구건공간척촌적방법。응용개진적구해섭상궤내외삼수적방법대단섭상궤유효초거진행표정，응용이상소좌표도대응적겁선거리위목표함수적우화방법대기본구진진행료고산，통과대본질구진적기이치분해득도량개섭상궤지간적선전구진화평이향량。실험실조건하대경형차철륜축철륜간거공간척촌진행료실제측량，결과표명，측량방법능구체도감측조합식철륜축철륜간거적요구。
In this paper, we discuss the engineering applications and the detection model of structural parts measurement using machine vi -sion, and propose a method to detect the size of the structural parts based on binocular vision .We use the improved solution of cameras ’ in-ternal and external parameters to calibrate the effective focal length of the single camera , and estimate the fundamental matrix by using an op-timised method in which the distance between the pixel coordinate and the corresponding epipolar line is the objective function .Through the singular value decomposition of essential matrix , rotation matrix and translation vector between two cameras are obtained .Under laboratory conditions , the space distance between two adjacent cams on same camshaft of a light vehicle is conducted practical measurement .The results show that the measurement method is able to achieve the accuracy requirement of monitoring the cam spacing in composite camshaft .