Abstract: With the development of augmented reality (AR) devices, augmented situation has become a major application point. Due to the lack of computing power and image processing power of AR equipment, there exist some problems such as slow scene generation speed and narrow field of vision. Based on the application of situation information display on AR equipment and the realization of the display function of device geographic information scene， this paper optimizes the terrain segmentation algorithm and proposes an adaptive Mesh regionalization algorithm to solve the above problems. The proposed algorithm, traditional terrain generation algorithm and terrain segmentation algorithm are tested. By comparing and analyzing, the test results show that this algorithm is superior to the traditional terrain generation algorithm in terms of display effect and fineness, and has less system overhead than the terrain segmentation algorithm. Therefore, the adaptive Mesh regionalization algorithm proposed in this paper can guarantee the effect of geographic information scene display function in augmented situation display application with less hardware cost.

Key words: augmented reality, geographic information, augmented situation, topography optimization； regionalization algorithm