3D navigation methods using nonphotorealistic (NPR) 3D maps
一种非真实感、导航地图的技术,应用在3D图像的加工、导航、测绘与导航等方向,能够解决没公开也没暗示等问题,达到减少地图更新、提高方位感、减少地图更新的需求的效果
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[0021] The present invention may provide a method of 3D navigation using an NPR 3D map, including stylized presentation of 3D objects in the navigation map. 3D objects displayed on the 3D navigation map may include buildings, landmarks, POIs, hazard points, and roads. The NPR 3D map can be generated based on 3D object data generated in different ways. Data providers may provide 3D data in a format suitable only for photorealistic rendering (eg, polygonal meshes with realistic textures). In this case, such data can be enhanced for NPR rendering. In addition, for stylized NPR rendering, 3D data can also be generated by reconstructing 2D data. For example, 3D building data may be generated from a 2D outline of a building without or with additional information (eg, type of building, height of building, etc.). In this process, specific rules may be applied based on the type of 3D buildings so that the styles or appearances of buildings of the same type are consistent. For examp...
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