Study On Several Key Technologies Of Double Camera System In Digital Close-Range Photogrammctry

Digital Close-Range Photogrammetry plays an important role in the industrymeasurement for its advantage of non-contact，fast, high precision，portable andmany targets can be measured at one time. The Double Camera Photogrammetry System,which is an important mode of Digital Close-Range Photogrammetry, makes up theshortcoming of the traditional industry measurement very well which can not achievereal-time measurement and dynamic measurement. This thesis mainly probe into thecalibrating structural parameters of double-camera and image matching arithmeticof Double Camera Photogrammetry System.The main works and contributions of this thesis are summarized as follows:(1) The basic theoretic of Double-Camera Photogrammetry System is introduced.(2) On the basic of adopting strongpoint of the available research results,the paper studies on the calibrating structural parameters method and theoreticof the Double-Camera, and improve on the calibrating methods of the two environmentmode, and implements these methods with VC++programming. The correctness andfeasibility are proved via a series of experiment in this thesis.(3) Several essential points of the image matching are introduced, and thematching arithmetic of circle Retro-reflective Target are analyzed, a new arithmetic which uses the Coded Target as a driver point is brought forward, thebasic theory are epipolar line constraint and the continuity constraint of theparallax. The new method is implemented with VC++programming, and the excellentright matching quotient is proved via experiment.(4) Considering the integrality of the paper, the calibration method of digitalcamera and the identifying and pick-up theoretic are discussed in this paper.