Abstract
With the rapid development of satellite sensor technology and aerial photography technology, spatial and temporal resolution of the remote sensing image has been greatly improved. To speed up the visualization of remote sensing images, pyramid building technology is the best choice at present. However, the performance of existing methods is not as good as expected. Considering the load imbalance problem caused by the uneven data distribution problem, this paper proposes a fast tile-pyramid construction algorithm based on multilevel task parallelism. Our method changed the traditional parallel tile generation algorithm which is generated layer by layer and implemented a new algorithm that generated multiple layers at the same time by using the entire tile pyramid as a whole. Experimental results on real-life datasets show that our new algorithm can improve the construction speed of tile-pyramids.
Published Version
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