浙江大学学报（理学版）2011，Vol.38Issue(6)：695-700,6.DOI:10.3785/j.issn.1008-9497.2011.06.017
基于GPU加速的遥感影像金字塔创建算法及其在土地遥感影像管理中的应用
Parallel image resample algorithm based on GPU for land remote sensing data management
摘要
Abstract
In order to accelerate the image pyramid creation algorithm,first we migrate the image resample algorithm to CUDA(Compute Unified Device Architecture). Which is the core step of image pyramid creation algorithm. Then the image pyramid creation based on threshold is presented to combine GPU and CPU image resample algorithm, considering that the data size could affect the mage resample algorithm's efficiency. Finally the algorithm is applied to the management of land remote sensing data. By using 24-bit 10 371 × 7 945 image for testing, the experiment result shows that: ①the GPU resample algorithm's speedup is 10 times faster than CPU resample algorithm's, ②on using the same type of resample algorithm, our parallel creating pyramid method's speedup is 3 times faster than ArcGIS 93's.关键词
影像重采样/CUDA/并行/金字塔/土地遥感影像管理Key words
image resample) CUDA/ parallel/ creating pyramid/ land remote sensing data management分类
天文与地球科学引用本文复制引用
康俊锋,杜震洪,刘仁义,方雷..基于GPU加速的遥感影像金字塔创建算法及其在土地遥感影像管理中的应用[J].浙江大学学报（理学版）,2011,38(6):695-700,6.基金项目
国家自然科学基金资助项目(41001227) （41001227）
国家863基金资助项目(2009AA12Z222) （2009AA12Z222）
浙江省自然科学基金资助项目(Y5090130) （Y5090130）
浙江省重点攻关基金资助项目(2009C33011,2010C33146) （2009C33011,2010C33146）
教育部博士点基金资助项目(200803350017). （200803350017）
