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1. 中国科学院光电技术研究所, 四川 成都 610209
2. 中国科学院 研究生院, 北京100049
收稿日期:2009-09-21,
修回日期:2009-12-10,
网络出版日期:2010-09-29,
纸质出版日期:2010-09-20
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王明富, 杨世洪, 吴钦章. 大面阵CCD图像实时显示系统的设计[J]. 光学精密工程, 2010,18(9): 2053-2059
WANG Ming-fu, YANG Shi-hong, WU Qin-zhang. D esign of large-array CCD real-time display system[J]. 光学精密工程, 2010,18(9): 2053-2059
王明富, 杨世洪, 吴钦章. 大面阵CCD图像实时显示系统的设计[J]. 光学精密工程, 2010,18(9): 2053-2059 DOI: 10.3788/OPE.20101809.2053.
WANG Ming-fu, YANG Shi-hong, WU Qin-zhang. D esign of large-array CCD real-time display system[J]. 光学精密工程, 2010,18(9): 2053-2059 DOI: 10.3788/OPE.20101809.2053.
为解决基于CameraLink接口的相机必须使用专用采集卡和系统机才能显示的问题
设计了一种结构简单、携带方便的图像实时显示系统。该系统采用2片SDRAM对图像进行交替缓存
并在Xilinx公司的Spatan3系列现场可编程门阵列(FPGA)中完成了较为复杂的主要控制逻辑。将CameraLink输入的图像经过拼接、BIN等预处理后缓存到1片SDRAM
同时按照一定格式以25 frame(50 field)/s的速度读出另1片SDRAM中的图像
经ADV7300转换成模拟电视信号后送到模拟显示器显示。结果表明
在相机帧频为3.6 frame/s时
该系统可以实时显示大面阵CCD数字航测相机拍摄的图像
能观察不同分辨率的图像以及原图像任何部位的细节
并能根据天气条件调整显示亮度以更好地观察图像。该系统只包含1块电路板和1个模拟显示器
已成功应用于4 0085 344面阵的CCD数字航测相机中。
As the CCD camera based on CameraLink interface can not display images without a dedicated data acquisition card and system computer
a kind of simple and real-time image display system was designed for a 4 0085 344 array CCD camera based on CameraLink interface. Two SDRAMs were used in the system to storage images alternately
and the main logical function was accomplished in a Spatan3 family Field Programming Gate Array(FPGA) from Xilinx Company. The image data from CameraLink were storaged in a SDRAM by stitching and BIN processing
meanwhile
the image data read from another SDRAM at a speed of 25 frame/s(50 field /s) were convert to standard TV analog signals by a digital-to-analog encoder chip ADV7300 to display in an analog monitor. The verification results show that the system can real-time display the images of the large-array digital aerial camera with different resolutions and their details at a speed of 3.6 frame /s
and also can adjust the brightness of the images to get a good observation according to the weather conditions. The designed system only contains one PCB board and one alanog monitor and has been used in a CCD digital aerial camera with the 4 0085 344 array successfully.
关澈, 王延杰. CCD相机实时自动调光系统
. 光学 精密工程, 2008,16(2):358-365. GUAN CH, WANG Y J. Real-time auto light control system of CCD camera
. Opt. Precision Eng., 2008,16(2):358-365. (in Chinese)
何中翔,杨世洪. 基于CameraLink的实时显示技术研究
. 现代显示,2008,93(10):31-35. HE ZH X, YANG SH H. Research on the real-time display technology based on cameraLink
. Advanced Display, 2008,93(10):31-35.(in Chinese)
Xilinx. Vertex-II Platform FPGA Handbook
. Xilinx, San Jose, CA, 2004.
徐欣,于红旗,易凡,等. 基于FPGA的嵌入式系统设计
. 北京:机械工业出版社, 2004. XU X, YU H Q, YI F. Embedded Systerm Design Based on FPGA
. Beijing: China Machine Press, 2004.(in Chinese)
苏海冰,吴钦章. 用SDRAM在高速数据采集和存储系统中实现海量缓存
. 光学 精密工程,2002,10(5):462-465. SHU H B, WU Q ZH. Realization of mass storage by using SDRAM in a high speed data acquistion and storage system
. Opt. Precision Eng., 2002,10(5):462-465. (in Chinese)
王明富,杨世洪. 大面阵CCD图像实时显示系统中的SDRAM控制器设计
. 计算机应用, 2009,5(5):1449-1451. WANG M F, YANG SH H. A SDRAM controller designed for large-array CCD image real-time display system
. Journal of Computer Applications, 2009,5(5):1449-1451.(in Chinese)
孙辉, 张葆, 刘晶红,等. 航空光电成像电子稳像技术
. 光学 精密工程, 2007,15(8):1280-1286. SUN H, ZHANG B, LIU J H, et al.. Electronic image stabilization for aerial E-O imaging system
. Opt. Precision Eng., 2007,15(8):1280-1286. (in Chinese)
刘瑞安, 靳世久, 吴晓荣,等. 视线跟踪系统中CCD摄像机的自适应调节
. 光学 精密工程, 2007,15(6):966-972. LIU R A, JIN SH J, WU X R, et al.. Adaptive regulation of CCD camera in eye gaze tracking system
. Opt. Precision Eng., 2007, 5(6):966-972. (in Chinese)
王慧. 面阵CCD数字航测相机成像模型与处理技术 . 郑州:解放军信息工程大学, 2006. WANG H. Imaging model and data processing technology of large format CCD aerial camera . Zhengzhou: Information Engineering University, 2006.
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