CAJ | 학술논문

考虑电梯轿厢内人数的电梯群控调度算法，可以在有限的时间内，找到更优解，对电梯的调度具有重要意义。针对目前基于视觉的人数统计算法正确率不够稳定，速度较慢的问题，提出了一种基于改进Hough变换检测人头轮廓的电梯轿厢内人数统计算法。该算法将标准Hough变换检测圆时的三维空间转换为一维空间，利用圆的几何特性遍历图像数据，通过一维Hough变换进行半径累积，并和阈值进行比较来确定人头轮廓的半径和圆心。结果表明，和用Hough变换检测人头轮廓的传统方法相比，该算法具有速度快，正确率高，抗噪性能好等优点。
고필전제교상내인수적전제군공조도산법，가이재유한적시간내，조도경우해，대전제적조도구유중요의의。침대목전기우시각적인수통계산법정학솔불구은정，속도교만적문제，제출료일충기우개진Hough변환검측인두륜곽적전제교상내인수통계산법。해산법장표준Hough변환검측원시적삼유공간전환위일유공간，이용원적궤하특성편력도상수거，통과일유Hough변환진행반경루적，병화역치진행비교래학정인두륜곽적반경화원심。결과표명，화용Hough변환검측인두륜곽적전통방법상비，해산법구유속도쾌，정학솔고，항조성능호등우점。
The elevator group control dispatch algorithm, which considers the numbers of people in elevator car, can find better solution in the limited time and is very important to the elevator dispatching. According to the instable accuracy and lower speed produced by the correct people counting algorithm based on vision, this paper proposes a counting algorithm for the numbers of people in elevator car based on improved Hough transform which is used to detect head contour. This algorithm converts three dimensional space based on the circle detection by standard Hough transform to one dimensional space, and adopts the geometrical character to traverse the image data, then accumulates value of radius by the one dimen-sional Hough transform, finally determines the radius and center of the head contour by comparing the values of radius with the threshold. The results of experiment show that the algorithm greatly reduces runtime and improves accuracy, has good anti-noise performance in contrast with the traditional method of head contour detection by Hough transform.