基于弹载图像记录器的压缩系统设计  

Compression System Design Based on Missile-Borne Image Recorder

作　　者：石永亮[1,2] 张会新[1,2] 刘文怡[1,2] 边大亮 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [2]电子测试技术重点实验室,太原030051

出　　处：《电子器件》2015年第5期1105-1108,共4页Chinese Journal of Electron Devices

摘　　要：设计了一种基于FPGA和DSP的图像压缩系统,通过该系统可以有效降低数据容量,提高无线遥测带宽利用率。系统采用Camera Link接口芯片DS90C32将LVDS信号转换为TTL信号,利用FPGA控制图像的采集、缓存、格式的转换、前期的处理以及与DSP之间的数据传输,通过DSP运用JPEG2000算法对图像数据进行实时压缩。最后通过比较图像压缩的效果,表明该系统具有实用性强,稳定性高,在压缩比为27:1的情况下图像失真率低的特点。This article designed of an image compression system based on FPGA and DSP, through which the data quantity could be reduced effectively and the telemetry bandwidth utilization can be improved. The system uses the camera link interface chip DS90C32 to convert LVDS signal to TTL signal and uses FPGA to implement image ac- quisition, storage, format conversion, pre-process and the data interface with DSP, then the image data can be real time compressed by DSP with JPEG2000 algorithms. Finally, by comparing the effect of image compression, it indi- cates that the system has practical, high stability and low image distortion characteristics under the compression ra- tio of 27 ： 1.

关 键 词：电子技术 图像压缩 JPEG2000 CAMERA LINK FPGA DSP 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]