Abstract
Abstract. In order to promote the construction of digital geo-spatial framework in China and accelerate the construction of informatization mapping system, three-dimensional geographic information model emerged. The three-dimensional geographic information model based on oblique photogrammetry technology has higher accuracy, shorter period and lower cost than traditional methods, and can more directly reflect the elevation, position and appearance of the features. At this stage, the technology of producing three-dimensional geographic information models based on oblique photogrammetry technology is rapidly developing. The market demand and model results have been emerged in a large amount, and the related quality inspection needs are also getting larger and larger. Through the study of relevant literature, it is found that there are a lot of researches on the basic principles and technical characteristics of this technology, and relatively few studies on quality inspection and analysis. On the basis of summarizing the basic principle and technical characteristics of oblique photogrammetry technology, this paper introduces the inspection contents and inspection methods of three-dimensional geographic information model based on oblique photogrammetry technology. Combined with the actual inspection work, this paper summarizes the quality problems of three-dimensional geographic information model based on oblique photogrammetry technology, analyzes the causes of the problems and puts forward the quality control measures. It provides technical guidance for the quality inspection of three-dimensional geographic information model data products based on oblique photogrammetry technology in China and provides technical support for the vigorous development of three-dimensional geographic information model based on oblique photogrammetry technology.
Highlights
The digital city concept based on multi-source spatial information is a key node in the digital earth construction process, and is an inevitable trend of urban development and social informatization
On the basis of summarizing the basic principles and technical characteristics of oblique photogrammetry technology, this paper introduces the inspection contents and inspection methods of three-dimensional model on geographic information based on oblique photogrammetry technology
Oblique photogrammetry technology is a high technology developed in the field of international surveying and mapping in recent years.It has changed the limitations of previous aerial photogrammetry that can only use a single camera to photograph objects from a vertical angle, by carrying multiple sensors on the same flight platform.At the same time, images are collected from different angles such as vertical, side, front and rear views (Figure 1) to obtain more complete and accurate information on ground objects(Li Zhenzhou et al, 2012a)
Summary
The digital city concept based on multi-source spatial information is a key node in the digital earth construction process, and is an inevitable trend of urban development and social informatization It realizes deep integration of 3S technologies (geographical information systems, remote sensing systems, and global positioning systems), and the internet and virtual technology. On the basis of summarizing the basic principles and technical characteristics of oblique photogrammetry technology, this paper introduces the inspection contents and inspection methods of three-dimensional model on geographic information based on oblique photogrammetry technology It combines the actual inspection work, summarizes the quality problems of three-dimensional model on geographic information based on oblique photogrammetry technology, analyzes the causes of the problems, and put forwards quality control measures. It provides technical support for the vigorous development of three-dimensional model on geographic information based on oblique photogrammetry technology
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
