| 基于OpenMP的JPEG2000并行解码算法的实现 |
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| 引用本文： | 吴昊,邓家先,黄艳.基于OpenMP的JPEG2000并行解码算法的实现[J].通信技术,2011,44(4):10-12,15. |
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| 作者姓名： | 吴昊 邓家先 黄艳 |
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| 作者单位： | 海南大学信息科学与技术学院,海南海口,570228 |
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| 摘 要： | 为了提高JPEG2000的解码速度,在多核处理器平台上利用OpenMP（Open specifications for Multi Processing）实现了JPEG2000的高速并行解码。即利用OpenMP对JPEG2000解码过程中的T1解码器和离散小波逆变换进行多路并行解码,减少了这两部分的运行时间,从而降低JPEG2000的整体解码时间。实验结果表明,OpenMP是一种简单而有效的并行化编程工具,在保证解码图像质量不变的前提下,相对单线程串行算法,所提出的并行解码算法,解码速度有显著提高。
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| 关 键 词： | JPEG2000 OpenMP 并行解码 T1解码器 离散小波逆变换 |
Realization of Parallel Decoding Algorithm for JPEG2000 based on OpenMP |
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| WU Hao,DENG Jia-xian,HUANG Yan.Realization of Parallel Decoding Algorithm for JPEG2000 based on OpenMP[J].Communications Technology,2011,44(4):10-12,15. |
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| Authors: | WU Hao DENG Jia-xian HUANG Yan |
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| Affiliation: | WU Hao,DENG Jia-xian,HUANG Yan(College of Information Science and Technology,Hainan University,Haikou Hainan 570228,China) |
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| Abstract: | In order to improve the decoding speed of JPEG2000,OpenMP(Open specifications for Multi Processing) is employed to achieve a high-speed JPEG2000 parallel decoding in the multi-core processor platform.Tier 1 and IDWT in the JPEG2000 decoding is complex and the time consuming.The algorithm proposed in the paper adopts OpenMP to realize multi-channel parallel decoding on Tier 1 and IDWT,and thus to reduce the running time of these two parts,and further the overall JPEG2000 decoding time.The experimental result... |
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| Keywords: | JPEG2000 OpenMP parallel decoding Tier 1 IDWT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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