CAJ | 학술논문

基于结构光激光三角法检测路面三维信息时，由遮挡造成的断面轮廓线条不连续（断点）问题，从几何面积角度出发，提出一种基于斜率渐变的图像断点插值算法。该算法根据相邻像素点已知的坐标值，以及曲线斜率渐变的趋势和光斑坐标值之间的关系，计算出断点处的像素坐标值的斜率，进而通过三角几何关系计算出缺失像素点的坐标值，并依据轮廓线恢复出路面的三维形貌。试验结果表明该算法简单可靠、适应性强。
기우결구광격광삼각법검측로면삼유신식시，유차당조성적단면륜곽선조불련속（단점）문제，종궤하면적각도출발，제출일충기우사솔점변적도상단점삽치산법。해산법근거상린상소점이지적좌표치，이급곡선사솔점변적추세화광반좌표치지간적관계，계산출단점처적상소좌표치적사솔，진이통과삼각궤하관계계산출결실상소점적좌표치，병의거륜곽선회복출로면적삼유형모。시험결과표명해산법간단가고、괄응성강。
During the detection processing of 3D road information employing the structure laser triangulation method ,it is unavoidable for breakpoints due to the shadow .In terms of geometric area ,an image breakpoint interpolation algorithm based on the smooth gradient is proposed in this paper .By means of the character of smooth gradient of curve ,the gradient values of the coordinate of breakpoint can be figured out .Subsequently ,based on the triangular geometrical relationship ,the coordinate values of missing pixels are calculated .Three-dimensional morphology can be recovered on the basis of contour line .The experiment results illuminated that the proposed algorithm are simple ,reliable ,and robust .