| 基于位平面的嵌入式超光谱图像压缩系统 |
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| 引用本文： | 尹传历,李嘉全.基于位平面的嵌入式超光谱图像压缩系统[J].液晶与显示,2012,27(2):245-249. |
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| 作者姓名： | 尹传历 李嘉全 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室,吉林长春,130033 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目(No.2008AA121803) |
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| 摘 要： | 针对超光谱图像压缩系统实时性差的缺点,提出一种基于位平面的嵌入式超光谱图像压缩系统。对高位位平面首先采用DPCM去相关,然后再进行游程编码,对低位位平面首先采用四叉数分割,然后再进行LZW编码,最后混合码流进行数据输出。结合实际应用,以高性能DSP芯片TMS320C6455作为中央处理器,结合现场可编程门阵列FPGA构成外围电路逻辑控制,搭建了嵌入式高速图像压缩处理平台。基于该平台用真实图像验证了文中提出的算法,实验结果表明,该系统在保持较高重建精度的同时,有效降低了算法运行量,减少了算法运行时间,能够满足工程项目的要求。
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| 关 键 词： | 位平面 嵌入式系统 超光谱 图像压缩 |
| 收稿时间： | 2011/9/22 |
Embedded Hyper-Spectral Image Compression System Based on Bit-plane |
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| YIN Chuan-li
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LI Jia-quan.Embedded Hyper-Spectral Image Compression System Based on Bit-plane[J].Chinese Journal of Liquid Crystals and Displays,2012,27(2):245-249. |
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| Authors: | YIN Chuan-li LI Jia-quan |
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| Affiliation: | (Key Laboratory of Airborne Optical Imaging and Measurement, Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033,China) |
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| Abstract: | According to the disadvantage of poor real-time of hyper-spectral image compression system,a new hyper-spectral image compression system based on bit-plane is presented.For the high-bit-plane,first DPCM to relevant is used,then the run-length encoding is done.For the low-bit-plane,the Quad-split algorithm is adapted,then the LZW encoding is done.Finally the mixed steam is given.An embedded high speed image compression processing system on high performance DSP TMS320C6455 and FPGA was designed.Experimental results with real images shows that the reconstruction of the system maintains a high accuracy,and the system can reduce the amount of running the algorithm,the running time of the program is shorter,so it can meet the requirements in the project. |
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| Keywords: | bit-plane embedded system hyper-spectral image compression |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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