Scheme Argumentation Of Camera Transit Based On Non-Metric Digital Camera

The technical capability of non-metric digital camera get to increase continuously in resent years, because the character of its cheap, carrying convenient, easy to deal with data etc, so it have very important meaning to apply digital camera to the aspect of digital close-range photogrammetry.Non-metric digital camera and telescope of transit are connected firmly for integral whole, and adopt a fixed position equipment that can be fixed repeatedly and have high accuracy, makes so-called camera transit system. In the application of the system, This paper puts forward examined method of the inner orientation elements of digital camera firstly, and calculation formula of the opposite position relation of digital camera and transit, and calculation formula of outer orientation elements of outer photograph stands, then use indoor control field, digital photogrammetry system and space resection of single frame to examine and experiment.Aiming at position of transit center coordinate of each stand when the system is used in engineering spot, this paper put up specific serving and calculation method. For constitution of relief images of digital camera, method is to choose single image at two arbitrary stands respectively and form around relief images, then adopt indoor control field again and intersection soft of ground relief photogrammetry to evaluate precision of the system. In the end, this paper summarizes main factors that affect the system accuracy on the experience foundation, and put forward reasonable advices to improve precision.