System Development of Making an Image Map Based on Google Earth

Abstract

With the advent of the information age, the establishment of high-precision, low-cost digital image maps are increasingly more important for surveying and mapping engineering, land management, forestry, and marine monitoring. Combining real remote sensing imagery with computer science and technology to produce an intuitive and clear digital image map has become a trend in the development of GIS systems today, but professional image data is expensive to purchase, resulting in greatly improving system development cost. Therefore, this paper proposes a new method based on Google Earth and GIS technology to develop a system for application.The system mainly includes geographic information collection (according to remote sensing image acquisition), geographic information storage and management (using database technology) and digital map production three Module. The key technologies of the system are the establishment of regional geographic model, attribute data management, the establishment of information database and information query and analysis.The system can provide digital image maps with high efficiency and low production, and establish the database to realize the timely exchange and sharing of geographic data. Compared with the traditional drawing method, the system reduces the cost of development, and improves the authenticity, intuitiveness and practicability of the GIS system; and compared with MapInfo and ArcView, the system is easier to operate and to draw efficiently without professional image data. The digital image map made by the system can save a lot of manpower, material and financial resources after the actual production, which improve the work efficiency and reduce work intensity, and also provide theoretical and technical guidance for the current surveying curriculum teaching.