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| 图像数据实时压缩技术研究 | |
| 引用本文： | 程子敬,周孝宽,周付根,王非.图像数据实时压缩技术研究[J].北京航空航天大学学报,1999,25(4):458-461. |
| 作者姓名： | 程子敬 周孝宽 周付根 王非 |
| 作者单位： | 1. 北京航空航天大学 计算机科学与工程系; 2. 北京航空航天大学 宇航学院; 3. 北京航空航天大学 自动控制系 |
| 摘 要： | 提出一种基于多模式自适应压缩算法的图像实时压缩技术,以此技术为基础,利用硬件设计描述语言VHDL和现场可编程序门阵列FPGA,设计成功系统专用集成芯片,以此芯片为核心,构成图像数据实时压缩系统.该系统采用阵列式处理与流水方式工作相结合的组织结构,数据处理速度与系统容量具有良好的可扩充性.系统单路数据处理速度为100Mbit/s,数据压缩比动态可调,图像恢复精度优于JPEG.本系统体积小、重量轻、功耗低、性能稳定可靠,适用于各种256级灰度图像. |
| 关 键 词： | 图像编码 实时 并行处理 大规模集成电路 |
| 收稿时间： | 1998-05-19 |
| 修稿时间： | : 1998-05- |
Study of Image Real-time Compression Technique |
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| Cheng Zijing,Zhou Xiaokuan,Zhou Fugen,Wang Fei.Study of Image Real-time Compression Technique[J].Journal of Beijing University of Aeronautics and Astronautics,1999,25(4):458-461. | |
| Authors: | Cheng Zijing Zhou Xiaokuan Zhou Fugen Wang Fei |
| Institution: | 1. Beijing University of Aeronautics and Astronautics,Dept. of Computer Science and Engineering; 2. Beijing University of Aeronautics and Astronautics,School of Astronautics; 3. Beijing University of Aeronautics and Astronautics,Dept. of Automatic Control |
| Abstract: | An image real time compression system based on multiple mode adaptive compression algorithm has been developed .The system comprises several processors working in parallel mode ,and each processor adopts pipeline working pattern ,so the capacity and the data processing speed of the system are adjustable .The ASIC of the processor has been designed and manufactured by using VHDL and FPGA .The peak processing speed of a single processor can reach 100Mbit/s .The compression rate can be adjusted dynamically and the PSNR of restored image varies from 35dB to 45dB.The system is characterized with low power consumption , small size, low weight. |
| Keywords: | picture coding real time parallel processing large scale integrated circuits |
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