陈绍杰,郑守住,赵文明,郭成成,金鑫

• 1:龙岩学院资源工程学院
• 2:同济大学测绘与地理信息学院
• 3:滁州学院地理信息与旅游学院

摘要(Abstract)：

针对近景视频摄影测量中椭圆标志点的中心定位精度影响后续的目标跟踪和三维重建精度的问题,该文为了保证获取椭圆亚像素的中心定位精度,提出了一种基于椭圆标志点亚像素边缘检测的中心定位方法。该方法首先利用Canny算子提取椭圆的轮廓,然后利用阈值分割、形态学边缘轮廓提取方法等方法对边缘进行约束,再利用形态学细化算法和空间矩提取椭圆的亚像素边缘,最后利用最小二乘拟合法实现椭圆中心的亚像素定位。实验结果表明:在模拟实验和真实影像的实验下,该方法与现有其他方法相比较,不仅能获取和定位高精度的椭圆中心(模拟实验下,椭圆中心定位精度高达0.02像素),而且具有高稳健性;能够满足近景摄影测量的精度和稳定性的需求。

关键词(KeyWords)： 近景视频摄影测量;椭圆标志;亚像素检测;亚像素定位

Abstract:

Keywords:

基金项目(Foundation): 福建省测绘地理信息科技发展基金项目(2016JX05);; 福建省自然科学基金项目(2018J0106);; 福建省省级大学生创新训练计划项目(201511312061)

作者(Author): 陈绍杰,郑守住,赵文明,郭成成,金鑫

DOI: 10.16251/j.cnki.1009-2307.2018.07.019

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