Based On The Close Shot Photogrammetry Technology Of Slope Deformation Monitoring In Mining Area And Its Application

Digital Close-range Photogrammetry is non-contact measurement method, it will not damage the target and have a high information capacity, the message can be easily stored and be reused, it has a high accuracy, high speed. This technique is suitable for measuring the objects containing large points or those located at dangerous position, especially a few special terrain, this essay, taking as an example of open-pit mine slope is discussed in this paper. In this paper, the slopes are monitored in the way of digital close-range photogrammetry, with a view to find new application areas by digital close-range photogrammetry and to promote digital close-range photogrammetry and deformation monitoring techniques for further development.Digital camera, as a photographic device of Digital Close-range Photogrammetry,with its low prices, mature technology, has been applied more and more. Using digital cameras as the equipment for photography also attracted more and more concern and research of scholars in many fields. This research use not calibration normal digital camera realize the slope of3D measurement, the distortion parameters for a camera on the measurement results of the influence degree of research and analysis, and applies the results to the deformation measurement of slope structure.The contents of this paper are given as follows:first this paper gives the basic theory of Digital Close-range Photogrammetry. introduce the close-range photogrammetry commonly used to coordinate system, internal and external position elements and line of total surface equation. Then, analysis of the commonly used photography measurement analysis method and the camera calibration method, and select the suitable method for a camera on the inside azimuth element and optical lens distortion bad of the calibration.Based on the general digital camera the close-range photogrammetry technology, must be used to identify targets laid artificial mark body features a point or observation are nodded, so in the study of artificial mark choice and layout scheme, in this paper the actual shooting environment in the experiment on the relatively appropriate artificial symbol and the points of monitoring position distribution. After collecting the image of actual object based on the principle of image collection, data processing call be done. Using professional modeling and measuring software LensphotoV2.0as the tool of image processing, measured quantity feature point3D coordinates, and the total station measurement results and photography tachometer data are compared and analyzed. The paper finished by summarizing the total word has been done and concluding the results. Further research work is also presented.