CAJ | 학술논문

文章研究高速CCD遥感图像压缩的系统设计与实现。与其它图像数据相比．CCD遥感图像数据具有高速率、高量化位数的特点。针对CCD相机输出图像的数据特点．基于ADV212压缩芯片．提出了一种高速CCD遥感图像压缩系统的构架方案。该方案采用FPGA＋ADV212＋SRAM的硬件结构方式．以FPGA作为系统的主控．SRAM完成输入数据的缓存处理．ADV212完成图像数据的高效压缩处理。文章最后构建了压缩系统的实验验证平台．对系统的性能进行了实验验证。试验结果表明。文中提出的系统压缩方案．压缩前后图像品质没有明显差异．可以满足遥感图像压缩系统的实时处理要求。
문장연구고속CCD요감도상압축적계통설계여실현。여기타도상수거상비．CCD요감도상수거구유고속솔、고양화위수적특점。침대CCD상궤수출도상적수거특점．기우ADV212압축심편．제출료일충고속CCD요감도상압축계통적구가방안。해방안채용FPGA＋ADV212＋SRAM적경건결구방식．이FPGA작위계통적주공．SRAM완성수입수거적완존처리．ADV212완성도상수거적고효압축처리。문장최후구건료압축계통적실험험증평태．대계통적성능진행료실험험증。시험결과표명。문중제출적계통압축방안．압축전후도상품질몰유명현차이．가이만족요감도상압축계통적실시처리요구。
This paper focuses on the issue of CCD remote sensing image compression. Compared with other images, CCD remote sensing image data is characterized with high speed and high quantized bits. A high speed CCD image compression system is proposed based on ADV212 chip. The system is mainly composed of three devices: FPGA, SRAM and ADV212. In this system, the SRAM plays the role of data buffer, the ADV212 focuses on data compression and the FPGA is used for image storage and interface bus control. Finally, a system platform is designed to test the performance of compression. Test results show that the proposed scheme can satisfy the real-time processing requirement and there is no compressed image in respect of image quality. obvious difference between the sourced image and the