NDLI: An Optimized Image Mosaic Algorithm with Parallel IO and Dynamic Grouped Parallel Strategy Based on Minimal Spanning Tree

Content Provider	IEEE Xplore Digital Library
Author	Yanying Wang Yan Ma Peng Liu Dingsheng Liu Jibo Xie
Copyright Year	2010
Abstract	Image mosaic on a great number of remote sensing images with large scale is commonly I/O intensive and time-consuming. However, parallel computing is recently considered as an effective way to solve the problems of enormous computation caused by its complicated algorithm and the massive data amount. But traditional parallelization of mosaic algorithm doesn’t optimize the serial processing pass of mosaic algorithm according to the parallel strategy. Furthermore, the registration and blending in mosaic is time-consuming, but there is no effective parallel strategy of data splitting to solve this problem. And what’s more, for massive remote sensing data the problem result from the I/O performance of the mosaic algorithm will bring perform bottle. To solve these problems, An Optimized Image Mosaic Algorithm with Parallel I/O And Dynamic Grouped Parallel Strategy Based On Minimal Spanning Tree is proposed in this paper. The processing procedure of the traditional algorithm is optimized to meet the need of the parallel strategy. What’s more, effective parallel strategy of data splitting is adopted in the time-consuming part registration and blending. In addition, the multi-thread parallel I/O strategy which is overlapping I/O and computing time is adopted to speed up the algorithm efficiency. Through experimental and comparative analysis, its outstanding parallel efficiency and perfect linear speedup is showed in this paper.
Starting Page	501
Ending Page	506
File Size	1164876
Page Count	6
File Format	PDF
ISBN	9781424493340
DOI	10.1109/GCC.2010.103
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Image registration dynamic grouped parallel strategy Heuristic algorithms Instruction sets Clustering algorithms image mosaic multi-thread parallel I/O parallel computing Remote sensing Mutual information
Content Type	Text
Resource Type	Article

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