摘要
基于非量测相机的数字近景影像技术具有作业简便,影像获取快速,安全可靠等优势。本文采用非量测相机,对数字近景影像技术在电力工程地形测绘中的应用进行研究。实验结果表明,通过对非量测相机的检校,可较好地改正非量测影像的构像畸变差,提高作业精度。该方法较为适宜测绘坡度较大区域的地形,作业精度可达分米级。由于其为非接触式的量测方式,在常规测量无法进行开展的危险地区,该技术更具有实际应用的优势。
To the advantage of low cost, convenient image capture, safe and reliable, the technology of digital close- range photogrammtry based on non-metric camera has been applied widely recent years. Using non-metric camera, the research on the application of this techonology in electric power engineering survey is given in this paper. The experiments results represent that through camera calibration, the image distortion of non-metric image can be correct well, and the accuracy can be improved effectively. This method is more suitalble for the slope rigon, and the work accuracy is at decimeter level. For its Un-contact survey mode, this method have a unique applicatioan superiority in the danger area in which common survey methods can not be applied.
出处
《电力勘测设计》
2013年第2期26-29,共4页
Electric Power Survey & Design
关键词
近景影像技术
非量测相机
地形测量
相机检校
精度
digital close-range photogrammetry
non-metric camera
topographic survey
camera calibration
accuracy.
