摘要
为了解决现有的存储介质和传输带宽与成像光谱仪(imaging spectrometer)异常庞大的光谱数据量之间的矛盾,本论文选用FPGA搭载JPEG2000压缩专用图像压缩芯片ADV212的方式;利用Xilinx的嵌入式开发套件所提供的可编程嵌入式开发平台和Xilinx MicroBlaze软核处理器设计了硬件系统来实现光谱数据压缩。系统设计使用专用图像压缩芯片,所以不必花费大量时间对JPEG2000算法进行优化,处理数据的速度较高,还原图像的质量较好而且实现起来简单,技术成熟可靠稳定。并在基于DMD的哈达玛成像光谱仪上对所设计系统进行了验证。结果表明该系统达到实时压缩光谱数据的要求。
In order to solve the conflict between existing storage media,transmission bandwidth and the unusual large amount of data of imaging spectrometer,this paper uses FPGA equipped with dedicated image compression chip ADV212,whose compression standard is JPEG2000.The system achieves the spectral data compression through using embedded development platform of embedded development kit provided by Xilinx and hardware system designed based on Xilinx MicroBlaze soft core processor.In this way,the author has not to spend a lot of time optimizing the algorithm.The system implements simply and its technology is mature,reliable and stable because of using a dedicated image compression chip.The hardware compression system was then verified on DMD-based Hadamard transform imaging spectrometer,the results show that the design reaches the requirements of real-time spectral data compression.
出处
《电子设计工程》
2011年第15期170-175,共6页
Electronic Design Engineering
