Study And Application Of Digital Close-range Photogrammetry Based On Ordinary Digital Image

Close-range photogrammetry has developed from the technology of CCD digital camera,digital image,image processing, computer science.The emergence of the ordinary digital images,resolved the problem of acquiring images quickly on the spot, and lowered the requirement for equipments and skills in photogrammetry, so that made photogrammetry a whole digital process. In order to increase the adaptability and accuracy of digital close-range photogrammetry based on common digital cameras, this paper researches and experiments have been done on these methods in this paper as following:1. the measurement and alteration of ordinary digital camera. It includes the correction parameters and picture's exterior orientation parameters, and Establishment of DDM based on control field.2. In the aspect of image processing,we study many hypo-pixel methods to obtain targets. It includes the category and the design of artificial Symbol, and research the accuracy analysis of hypo-pixel methods.3. Researches on the stereophotogrammetry of digital images, which include relative orientation, absolute orientation, model collection and bundle adjustment.4. Rotation in relative orientation is consisted of angles which is the main reason of badresults.However,Pope-Hinsken could solve this problem .It replaces the angles with four parameters. It is a good way for the relative orientation.5. We development of Simple mapping system based on epipolar line and space intersection;6. Aimed at the actual application of the researches on photogram metric techniques and methods based on ordinary digital images, this paper recounts the development of a Slope information manages the system;...