Implicit restricted quadtree based visualization of large scale terrain

Jie Zhang, Changwen Zheng, Pin Lv, Xiaohui Hu

Abstract: Realistic rendering of large scale terrain scene in real-time is an important subject in virtual reality (VR) to construct a virtual environment with immersion and interactivity [Zhao 2009]. Large scale terrain scene visualization is popular in a variety of fields such as geographic information systems (GIS), military maneuvers, games, flight training and so on. Many visualization algorithms for terrain scenes have been proposed during the past decades, but to the authors' knowledge, approaches with high visual accuracy as well as low memory and time complexity have not been developed yet.