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 ABSTRACT
GIS spatial raster analysis has become a powerful tool for geographical phenomena. Unfortunately the computation-intensive raster operations are likely to create computer performance bottlenecks when running on the CPUs. Over the last few years, GPU performance has improved much more than CPU performance. For this reason, many researches have applied the GPUs for scientific, geometric and database computations beyond graphics. This paper demonstrates a general framework for the GPU-based implementation of GIS raster operations, and conducts experiments to compare the computation performance between GPU-based and CPU-based algorithms. The test results indicate that using GPU on spatial raster operations can significantly improve their computation performance. This means that realizing GIS spatial analysis on the GPU create new opportunities by drastically lowering the cost of raster operations on the same hardware performance.

Author:
Ye Wu∗a, Ying Ge, Weibao Yanb, Xinyu Lia
aCollege of Civil Engineering, Hohai Univ., 1 Xikang Road, Nanjing, 210098, China;
bCollege of Civil Engineering, University of Technology, Nanjing, 210093, China

Keywords:
graphics processing unit (GPU), spatial raster analysis of GIS, computation performance

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posted on 2007-05-25 18:55 空明流转 阅读(635) 评论(2)  编辑 收藏 引用

评论

# re: [Paper] Improving the performance of spatial raster analysis in GIS using GPU 2007-05-26 00:17 sssa
能不能给个中文版的论文啊  回复  更多评论
  

# re: [Paper] Improving the performance of spatial raster analysis in GIS using GPU 2007-05-26 20:17 空明流转
没有中文版的。。。  回复  更多评论
  


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