CAJ | 학술논문

针对无人飞行器小负载的需求,设计了具有自检校功能的特轻小型四组合宽角数字相机,克服了数码相机像幅小,基线短的缺点;提出了一种基于软式的稳定平台的解决方法,实现了无稳定平台的正直航空摄影测量,满足了高精度、高效率的大比例尺低空摄影测量应用,解决了城市复杂建筑物多面纹理的获取问题.测图精度检测结果表明:相机相对自检校有效纠正了航摄过程中的机械变形,满足了影像拼接的几何精度,使用该组合宽角数码相机影像资料测制的1:1 000比例尺地形图可满足精度要求,优于规范规定的限差.
침대무인비행기소부재적수구,설계료구유자검교공능적특경소형사조합관각수자상궤,극복료수마상궤상폭소,기선단적결점;제출료일충기우연식적은정평태적해결방법,실현료무은정평태적정직항공섭영측량,만족료고정도、고효솔적대비례척저공섭영측량응용,해결료성시복잡건축물다면문리적획취문제.측도정도검측결과표명:상궤상대자검교유효규정료항섭과정중적궤계변형,만족료영상병접적궤하정도,사용해조합관각수마상궤영상자료측제적1:1 000비례척지형도가만족정도요구,우우규범규정적한차.
According to the need of small load of UAV, a compact and wide-angle composite digital camera, which has self-calibration function, was designed through combination of four individual digit al cameras. It could overcome the disadvantages of the narrow cover and short base line of single camera. The solution based on a soft style steady platform was suggested. The upright aerial photography without steady platform was implemented. So the developed camera could be used in low altitude and large proportion photography with high resolution and efficiency. The problem how to acquire the multidimensional texture images of complex buildings in city was solved. Experimental results of image test show that the proposed self-calibration method can effectively correct and compensate for the mechanical deformation during aerial photography and meet the geometrical precision of image mosaic. The precision of 1:1000 scaled map from the images taken with the wide-angle composite camera is satisfing and higher than specified tolerance.