Small Digital Aerial Photogrammetry System

At present, DPW(Digital Photogrammetric Workstation)is excellent software to do digital image, but we have to take the images by traditional film primarily. The method how to take full-digital images quickly has been important research direction. Disposing the digital image taken by digital camera directly is the key of digital camera application in Photogrammetry, and this research has been focus.It's difficult to use digital camera to take aerial image, because digital camera is "non-measured" camera, of which interior orientations can't been measured directly, and the aberrations of digital camera lens is worse normally. The frame of digital camera is rectangle, generally it's small. So the workload of control survey and disposing of images increases quickly. Therefore, there are many difficult technology problem to resolve if we want to use digital camera in photogrammetryIn this thesis, the problems mentioned are discussed. The field used to calibrate photogrammetric digital camera has been established;The GPS-supported Aerial Triangulation based digital camera has been finished;the programs of rectifying image and bi-digital camera calibration have been developed. The process of aerial photogrammetry based on digital camera is tallied up, and the the technique criteria of aerial photogrammetry is established.