关键词: 虚实融合, 实时视频流, WebGL, WebGIS

Abstract: At present, smart cities have already become an important trend of urban governance in the information era. As an effective display method to the smart cities, augmented virtual environment technology has long been a common concern of researchers. However most of current augmented virtual environment technologies have the disadvantages of high hardware requirements, poor cross-platform capability, so it is difficult to promote to the common users. To solve this problem, in this paper, we put forward a fusion method based on WebGL, which combines the real-time monitor video stream with the 3D geographic scene, resulting in an augmented virtual environment system in the WebGIS. Experiment results show that the system has lower hardware resource requirements and better cross platform performance, which is easy to be promoted on the Internet.

Key words: virtual-reality fusion, real-time video streaming, WebGL, WebGIS