| 基于OpenMP的JPEG2000图像并行编码算法 |
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| 引用本文： | 张娜,邓家先,黄艳.基于OpenMP的JPEG2000图像并行编码算法[J].通信技术,2011,44(4):21-24. |
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| 作者姓名： | 张娜 邓家先 黄艳 |
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| 作者单位： | 海南大学信息科学技术学院,海南海口,570228 |
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| 摘 要： | JPEG2000是新一代图像压缩标准,具有编码效率高、性能好等优点,由于采用小波和比特平面编码技术,其编码复杂度高,编码速度较慢。为了提高JPEG2000的编码速度,提出一种基于OpenMP的JPEG2000图像并行编码算法,通过对离散小波变换和EBCOT算法的并行处理,提高编码速度。结果表明,该算法在保持了JPEG2000良好特性的基础上,大大提高了编码速度,而且图像越大,对编码速度的改善越明显,使JPEG2000更加适用于大数据量的图像的传输。
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| 关 键 词： | OpenMP 编码 JPEG2000 并行算法 |
JPEG2000 Image Parallel Encoding Algorithm based on OpenMP |
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| ZHANG Na,DENG Jia-xian,HUANG Yan.JPEG2000 Image Parallel Encoding Algorithm based on OpenMP[J].Communications Technology,2011,44(4):21-24. |
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| Authors: | ZHANG Na DENG Jia-xian HUANG Yan |
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| Affiliation: | ZHANG Na,DENG Jia-xian,HUANG Yan(Information Science and Technology School,Hainan University,Haikou Hainan 570228,China) |
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| Abstract: | JPEG2000 is a new image compression standard,with advantages including high encoding efficiency and good performance.For the adoption of wavelet and bit-plane coding technique,it is high in encoding complexity while slow in encoding speed.In order to enhance the encoding speed of JPEG2000,a parallel JPEG2000 image encoding algorithm based on the OpenMP is proposed.Through parallel processing on discrete separate wavelet transformation and the EBCOT algorithm,the code speed is raised.The experimental result ... |
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| Keywords: | OpenMP encode JPEG2000 parallel algorithm |
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