An Efficient, Platform-Independent Map Rendering Framework for Mobile Augmented Reality
| Autor: | Xianglong Li, Shaohua Wang, Wang Chenliang, Kejia Huang, Guoxiong Chen, Runying Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
spatial computing
Geography (General) parallel technology Computer science Interface (computing) AR-GIS Geography Planning and Development GPU mobile augmented reality Rendering (computer graphics) Visualization Vector graphics Consistency (database systems) geovisualization Computer graphics (images) Earth and Planetary Sciences (miscellaneous) G1-922 Augmented reality Computers in Earth Sciences Graphics Android (operating system) |
| Zdroj: | ISPRS International Journal of Geo-Information, Vol 10, Iss 593, p 593 (2021) ISPRS International Journal of Geo-Information Volume 10 Issue 9 |
| ISSN: | 2220-9964 |
| Popis: | With the extensive application of big spatial data and the emergence of spatial computing, augmented reality (AR) map rendering has attracted significant attention. A common issue in existing solutions is that AR-GIS systems rely on different platform-specific graphics libraries on different operating systems, and rendering implementations can vary across various platforms. This causes performance degradation and rendering styles that are not consistent across environments. However, high-performance rendering consistency across devices is critical in AR-GIS, especially for edge collaborative computing. In this paper, we present a high-performance, platform-independent AR-GIS rendering engine the augmented reality universal graphics library (AUGL) engine. A unified cross-platform interface is proposed to preserve AR-GIS rendering style consistency across platforms. High-performance AR-GIS map symbol drawing models are defined and implemented based on a unified algorithm interface. We also develop a pre-caching strategy, optimized spatial-index querying, and a GPU-accelerated vector drawing algorithm that minimizes IO latency throughout the rendering process. Comparisons to existing AR-GIS visualization engines indicate that the performance of the AUGL engine is two times higher than that of the AR-GIS rendering engine on the Android, iOS, and Vuforia platforms. The drawing efficiency for vector polygons is improved significantly. The rendering performance is more than three times better than the average performances of existing Android and iOS systems. |
| Databáze: | OpenAIRE |
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