基于多线阵CCDS相机的大幅面扫描仪高精度实时拼接实现新方法
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摘要
提出了一种能实现多线阵CCDS相机大幅面扫描仪实时高精度拼接的新方法,并制作了国内首台大幅面扫描仪。该方法的基本原理是将传统大幅面扫描仪中采用复杂机械系统与软件系统相结合完成的快速高精度拼接工作,移植到FPGA与SDRAM相结合的硬件平台实现。实验结果及实际应用效果表明:采用该高精度实时拼接新方法的多线阵CCD相机的大幅面扫描仪,在1 200 DPI分辨率、A0幅面、2.54 cm/s扫描率下,能够实时拼接3个三线阵CCD相机的图像数据,拼接精度为+1/-1像素,能成功满足大幅面扫描仪的需求。据我们所知,在应用上成功实现大幅面拼接型高精度一次性成像扫描仪的高精度实时拼接,国内、未见报道。
This paper puts forward a new method of multi-linear CCDS camera large format scanner by real-time precision stitching,and produces the first high-speed tri-CCD large format scanners domestically.The basic theory is mosaic work which combines complex mechanical system and software system,it works by the hardware platform of combination of FPGA and SDRAM.The experiment and test result shows that,using the new method of high-precision and real-time splicing large format scanner which has optical resolution up to 1200 DPI,scanning width up to A0 image and scanning speed up to 2.54 cm/s,the accuracy of splicing after scanning can reach up +1/-1 pixels,can splice three tri-CCD camera ' s picture and successfully meet the demand of large format scanner.As far as we know,the success in application of large format imaging scanner in high-precision and real-time splicing has been reported neither home nor abroad used in product in large format scanner.
This paper puts forward a new method of multi-linear CCDS camera large format scanner by real-time precision stitching,and produces the first high-speed tri-CCD large format scanners domestically.The basic theory is mosaic work which combines complex mechanical system and software system,it works by the hardware platform of combination of FPGA and SDRAM.The experiment and test result shows that,using the new method of high-precision and real-time splicing large format scanner which has optical resolution up to 1200 DPI,scanning width up to A0 image and scanning speed up to 2.54 cm/s,the accuracy of splicing after scanning can reach up +1/-1 pixels,can splice three tri-CCD camera ' s picture and successfully meet the demand of large format scanner.As far as we know,the success in application of large format imaging scanner in high-precision and real-time splicing has been reported neither home nor abroad used in product in large format scanner.
引文
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[2]任建岳,孙斌,张星祥.TDICCD交错拼接的精度检测[J].光学精密工程,2008,16(10):1852-1857.
[3]武星星,刘金国.三线阵立体测绘相机时间系统优化与实时监测[J].光学精密工程,2012,20(5):1022-1030.
[4]朱宏殷,郭永飞,司国良.多TDICCD拼接相机成像非均匀性实时校正的硬件实现[J].光学精密工程,2011,12(19):3025-3041.
[5]Hyuck Choo,Garmire D,Demmel J,et al.Simple Fabrication Process for Self-Aligned High-Performance Microscanners-Demon-strated Use to Generate a2-D Ablation Pattern[J].Microelectro mechanical Systems,2007,16(2):260-268.
[6]Hu Tao,Chen Yanan.Design of the Linear Array CCD Acquisition System that Line Frequency and Integration Time Adjustable[C]//Electronics and Optoelectronics(ICEOE),2011International Con-ference on,2011,2:253-256.
[7]Wang J H.A Topology Set Method for Vectorization[C]//Eighth ACIS International Conference on Software Engineering,IEEE,2007,1:229-234.
[8]Nicholson S W,Peiffer R,Shaw J D.Hardware in Libraries:Making Informed Choices[J].Library Hi Tech,2011,1(29):73-82.
[9]Bhavsar A V,Rajagopalan A N.Range Map with Missing Data-Joint Resolution Enhancement and Inpainting[C]//2008Sixth Indian Conference on Computer Vision,Graphics&Image Processing,IEEE,2008:259-365.
[10]王勤,王庆友,齐龙.多线阵CCD拼接检测宽幅PS版表面缺陷的研究[J].光电子激光,2005,16(11):1350-1354.
[11]Linden J,Knappe C,Richter M,et al.Limitations of ICCD Detectors and Optimized2D Phosphor Thermometry[J].Measure-ment Science&Technology,2012,3(23):8.
[12]Monoi M,Sasaki S,Dobashi K,et al.A Single-Layer CCD Image Sensor with Wide Gap Electrode and Gradual Potential Channel[C]//Society of Photo-Optical Instrumentation Engineers(SPIE)Conference Series,SPIE,2009,7247:12.
[13]夏玉立,雷宏,黄瑶.用Xilinx FPGA实现DDR SDRAM控制器[J].微计算机信息,2007,23(9-2):209-211.
[14]马灵,杨俊峰,宋克柱.地震数据采集中基于FPGA的多DDR SDRAM控制器设计[J].中国科学技术大学学报,2010,40(9):939-945.
[15]Zheng Dechun,Yang Yang,Zhang Ying.FPGA Realization of Multi-Port SDRAM Controller in Real Time Image Acquisition Sys-tem[C]//Multimedia Technology(ICMT),2011International Conference on,2011,4925-4928.
[16]陈学飞,汶德胜,郑培云.基于CPLD的CCD视频信号处理电路的设计与硬件实现基于CPLD的CCD视频信号处理电路的设计与硬件实现[J].电子器件,2008,31(3):807-810.
[17]Zhou Zude,Cheng Songlin,Liu Quan.Application of DDR Controller for High-Speed Data Acquisition Board[C]//Innovative Computing,Information and Control,2006.ICICIC’06.First Inter-national Conference on,2006,2:611-614.
[18]Pan Guangrong,Feng Da,Wang Qin,et al.The Design and Imple-mentation of AMBA Interfaced High-Performance SDRAM Controller for HDTV SoC[C]//Computer Science and Information Engineering,2009WRI World Congress on,2009,3:448-452.
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