1:2000D0M Inspection Method Practice And Experience

The digital ortho image (DOM) is a digital image with the nature of the positive projection. It is a digital aerial image or remote sensing(RS)image which is scanned by digital elevation model (DEM). The image data is projected to be corrected by the projection difference, and has km grid, cartouche and notes, this kind of image is intuitive in interpretation and has a wealth of texture information. At present, the production method of digital ortho image map is more and more advanced, the production efficiency is also higher and higher, the market application prospect is also more and more widely.In our country, the use of DOM has made a lot of contributions to the construction, management and the development of national economy. This paper discusses the whole process of the DOM production and inspection:first, it introduces the background, significance and necessity of the use of DOM in nowadays and then tells us the basic knowledge of aerial image. Second, this paper introduces, sorts and summaries the main specifications of the DOM inspection at the scale of 1:2000 for more convenient to use, emphasis the points of attention and induces the standard of quality evaluation of digital surveying and mapping. Third, this paper introduces the basic process and common method of inspection 1:2000 DOM, analyzes the contents of DOM and mainly expounds the method and system of 1:2000 DOM inspections, summarizes the main method of quality evaluation of DOM. After that, it introduces the process flow, t implementation, and the final result of the 1:2000 DOM by the project of 1:2000 UAV aerial photogrammetry of rural collective land ownership registration certification in Qilin of Qujing city. It is a sense of broad inspection other than the narrow surface one. Finally, this paper summarizes the common problems and inspection experience in actual DOM production and inspection projects for more reference and discussion.