近景摄影测量中圆标靶圆心提取的方法  

Center Extraction Method for Circular Surveying Markers in Close-range Photogrammetry

作　　者：鄢咏折 黄先锋[2,3] 张帆 范晓燕[1] 

机构地区：[1]广西壮族自治区遥感信息测绘院,广西530023 [2]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [3]数字云冈联合实验室,山西037007

出　　处：《地理空间信息》2018年第10期94-97,共4页Geospatial Information

基　　金：国家自然科学基金资助项目(41571437)

摘　　要：对近景摄影测量中常使用的圆形标靶,提出了一种识别并提取圆心的方法。该方法通过二值化、区域增长、边缘点提取、最小二乘拟合等一系列图像处理后,最终实现圆标靶的识别及提取。实验结果验证了该方法的可行性。In this paper, we proposed a center extraction method for circular surveying markers, which were usually used in close-range photogrammetry. This method recognized and extracted circular surveying markers' center, based on a series of image processing, such as binaryzation, region growing, edge detection, least square fitting and so on. We verified the effectiveness of the proposed method by the experimental result.

关 键 词：近景摄影测量 圆标靶 圆心提取 

分 类 号：P234[天文地球—摄影测量与遥感]