| 星载高速图像数据压缩原理样机的研制 |
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| 引用本文： | 程子敬,周孝宽. 星载高速图像数据压缩原理样机的研制[J]. 北京航空航天大学学报, 1999, 25(6): 743-746 |
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| 作者姓名： | 程子敬 周孝宽 |
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| 作者单位： | 1.北京航空航天大学 计算机科学与工程系 |
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| 摘 要： | 针对星上高速遥感数据实时压缩要求,选用多模式自适应量化压缩算法,设计了同步并行阵列与流水线相结合的压缩系统体系结构,并以可编程序门阵列物理实现.采用四路压缩系统并行的阵列结构,研制成功高速数据压缩原理样机,数据处理速度大于1000Mbit/s,恢复图像平均峰值信噪比大于40dB.
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| 关 键 词： | 图像 编码 实时 并行处理 |
| 收稿时间： | 1999-04-20 |
Development of the Prototype of High Speed Image Compression Device for Satellite |
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| Cheng Zijing,Zhou Xiaokuan. Development of the Prototype of High Speed Image Compression Device for Satellite[J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(6): 743-746 |
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| Authors: | Cheng Zijing Zhou Xiaokuan |
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| Affiliation: | 1.Beijing University of Aeronautics and Astronautics,Dept. of Computer Science and Engineering2. Beijing University of Aeronautics and Astronautics,School of Astronautics |
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| Abstract: | Hardware implementation of Multi Mode Adaptive Quantization Compression (MMAQC) algorithm for high speed image compression is investigated. Using pipeline and synchronization parallel arrays, the VLSI architectures for modeling, quantization and coding are proposed. The proposed hardware architectures are fast with low hardware complexity. Based on the architectures, a prototype of high speed image compression device for satellite is designed and manufactured with Field Programmable Gate Arrays. Test results show that at compression ratio of four, the processing speed of the device is above 1000Mbit/s, and the average PSNR of restored images is above 40dB. |
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| Keywords: | image code real time parallel processing |
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