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| 干涉超光谱图像分析与近无损压缩CPLD实现 | |
| 引用本文： | 吴小华,李自田,张帆.干涉超光谱图像分析与近无损压缩CPLD实现[J].光子学报,2005,34(9):1346-1350. |
| 作者姓名： | 吴小华 李自田 张帆 |
| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710068;中国科学院研究生院,北京,100039 2. 中国科学院西安光学精密机械研究所,西安,710068 |
| 摘 要： | 介绍了干涉超光谱卫星遥感图像的成像特性，计算、比较分析了干涉超光谱图象的空间维与光谱维的相关性，提出了一种近无损压缩的局部DPCM算法.选用CPLD在Maxplus Ⅱ使用VHDL语言对该压缩算法进行了硬件描述和仿真.仿真结果表明该压缩算法简单可行，易由硬件实现. |
| 关 键 词： | 干涉超光谱图象 图象压缩 DPCM VHDL CPLD |
| 收稿时间： | 2004-07-26 |
| 修稿时间： | 2004年7月26日 |
Analysis and Near-lossless Compression Based on CPLD of Interference Hyperspectral Image |
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| Wu Xiaohua,Li Zitian,Zhang Fan.Analysis and Near-lossless Compression Based on CPLD of Interference Hyperspectral Image[J].Acta Photonica Sinica,2005,34(9):1346-1350. | |
| Authors: | Wu Xiaohua Li Zitian Zhang Fan |
| Institution: | (1 Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710068 ) 92 Graduate School of Chinese Academy of Sciences, Beijing 100039) |
| Abstract: | After introducing the interferometer scheme and calculating and analyzing correlation coefficients of interference hyspectral images,a method of Near-lossless Compression based on part DPCM for interference hyspectral image is proposed.Complex programmable logic device(CPLD)has been chosen as the hardware design platform,and the algorithm has been described with VHDL.The designed algorithm has been successfully fulfilled system simulation with Maxplus Ⅱ software.The simulation result shows that the algorithm is simple and feasible and can be realized with hardware. |
| Keywords: | Interference Hyperspectral image Image compression DPCM VHDL CPLD |
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