Abstract

Nowaday, the application of photogrammetry technology in collecting geographic information data and making topographic maps has become popular in the world and in Vietnam base on the advantages of this technology such as reducing time construction, reducing labor therefore bringing high economic benefits. The photogrammetry technology is assessed that it has great applicability, but it often has to be combined with direct measurement in the process of collecting geographic information data and creating topographic maps due to limitations that cannot be engraved in practice such as: lack of topographic and terrain data in high coverage areas, limited vertical data collection of the terrain ...Therefore, in order to complete the process of applying photogrammetry technology in collecting geographic information data and creating topographic maps, studies are needed to overcome the above disadvantages. The authors researched based on the application of photogrammetry technology to overcome the above disadvantages. This paper introduces the Terrestrial Camera system based on photogrammetry technology that integrated by a digital camera, a GNSS and an IMU device. Besides, the paper investigates the accuracy of this system in collecting geographic information data and creating topographic maps.