单反相机在仿古建筑精细建模中的应用  

Application of digital single lens reflex camera in fine modeling of antique architecture

作　　者：荆常伟 徐工[1] JING Changwei;XU Gong(Shandong University of Technology,Zibo Shandong 255000,China;Shandong Gaoxin Geotechnical Engineering Company Limited,Zibo Shandong 255000,China)

机构地区：[1]山东理工大学,山东淄博255000 [2]山东高新岩土工程有限公司,山东淄博255000

出　　处：《北京测绘》2024年第3期349-354,共6页Beijing Surveying and Mapping

摘　　要：普通单反相机、手持相机等非量测相机用于近景摄影测量辅助精细建模时,由于仿古建筑细节纹理具有高度相似性,获取的影像又缺少高精度定位测姿系统(POS)信息,在空中三角测量运算时,会匹配出大量错误连接点,以至于不能顺利重建三维模型,针对这一问题,本文提出一种单反相机用于大型仿古建筑精细建模的方法,采用先分区后融合的空中三角测量方法,避免出现错误连接点,通过试验证明该方法能有效避免出现错误连接点,融合建模的纹理精度和位置精度均能满足地理实体生产和实景三维的要求。Non-metric cameras such as ordinary digital single lens reflex(DSLR)cameras and handheld cameras can be used for close-range photogrammetry to assist in fine modeling.However,due to the high similarity of the texture details of antique buildings,the obtained images lack highly accurate position and orientation system(POS)information.During aerial triangulation operations,a large number of incorrect connection points will be matched,making it difficult to successfully reconstruct the model.To address this issue,this paper proposed a method of using a DSLR camera for fine modeling of large-scale antique buildings.The aerial triangulation method of first partition and then fusion was adopted to avoid the occurrence of incorrect connection points.The experiments have proven that this method can effectively avoid the occurrence of incorrect connection points.The texture accuracy and position accuracy of fusion modeling can meet the requirements of geographic entity production and real-scene 3D.

关 键 词：数码单反相机 倾斜摄影 近景摄影 贴近摄影 空中三角测量 

分 类 号：P234.1[天文地球—摄影测量与遥感]