数字近景影像技术在工程中的应用

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。

Application of Digital Close-range Photogrammetry in Engineering

To the advantage of low cost,convenient image capture,safe and reliable,the technology of digital closerange 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.