Study of Image Real-time Compression Technique
-
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.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 100 Mbit/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.
-
Key words:
- picture coding /
- realtime /
- parallel processing /
- large scale integrated circuits
-
1. 周孝宽.遥感图像多模式自适应量化压缩法.中国图像图形学报,1997,2(2):7~11 -
点击查看大图
计量
- 文章访问数: 2530
- HTML全文浏览量: 48
- PDF下载量: 912
- 被引次数: 0
下载:
