基于FPGA的视频信号采集技术研究
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摘要
便携式裸眼3D设备的电路需要完成立体视频文件的解码播放和信号的实时处理,采用ARM+FPGA结构更有利于电路的研制。ARM系统支持Windows CE、安卓等操作系统,并具有LCD接口,通过FPGA采集ARM视频信号并暂存于随机存储器中,完成3D图像列插值、缩放后再输入3D液晶屏。探讨了使用FPGA器件完成数字视频信号的采集方法,得出数字视频采集的可行逻辑设计法,集成ARM与FPGA的综合优势来完成3D电路设计。系统性能经过初步验证,具有很好的可行性。
The circuit of portable naked-eye 3D device needs to complete the stereoscopic video file decoding and the real-time processing of video signal. It uses the ARM + FPGA structure,which is more beneficial to design the circuit. The ARM system supports various operating system,such as Windows CE,Android and so on,it also has LCD interface. The output video signal from ARM is collected by FPGA and is stored in the random access memory,which will be inputted to 3D LCD screen after finishing 3D image interpolation and scaling. The acquisition method of digital video signal is discussed in this paper,which is completed by the FPGA. And it gets a logical method which integrates the advantages of ARM and FPGA to design the 3D circuit. Through the initial proof,the system performance has a good feasibility.
The circuit of portable naked-eye 3D device needs to complete the stereoscopic video file decoding and the real-time processing of video signal. It uses the ARM + FPGA structure,which is more beneficial to design the circuit. The ARM system supports various operating system,such as Windows CE,Android and so on,it also has LCD interface. The output video signal from ARM is collected by FPGA and is stored in the random access memory,which will be inputted to 3D LCD screen after finishing 3D image interpolation and scaling. The acquisition method of digital video signal is discussed in this paper,which is completed by the FPGA. And it gets a logical method which integrates the advantages of ARM and FPGA to design the 3D circuit. Through the initial proof,the system performance has a good feasibility.
引文
[1]梁发云,邓善熙,杨永跃.立体图像视频格式及其转换技术研究[J].仪器仪表学报,2005,26(12):1233-1237.
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[4]邓中亮,肖冠兰.Windows CE6.0下LCD驱动程序移植[J].计算机与现代化,2011(1):14-17.
[5]吴继华,蔡海宁,王诚.Altera FPGA/CPLD设计(高级篇)[M].北京:人民邮电出版社,2011.
[6]刘爽,赵凯生,龙再川,等.基于ARM和FPGA的嵌入式CCD采集系统[J].光电子·激光,2007,18(11):1296-1298.
[7]Altera Corporation.Cyclone II device handbook[EB/OL].[2013-11-6].http://www.altera.com.
[8]ZHU Jiayi,LIU Peilin,ZHOU Dajiang.An SDRAM controller optimized for high definition video coding application[C]//Proc.ISCAS.Seattle:IEEE Press,2008:3518-3521.
[9]干莽,齐贵宝,陈捷,等.基于FPGA与SDRAM的高效LCD控制器设计[J].吉林大学学报:信息科学版,2013,31(4):380-384.
[2]张挺飞,樊永生,孙凌云.基于FPGA+ARM的智能图像门控系统[J].电视技术,2012,36(17):156-158.
[3]吴禄慎,任丹.面外“moire”计算机图像处理技术的研究[J].南昌大学学报:工科版,2000,12(22):1-5.
[4]邓中亮,肖冠兰.Windows CE6.0下LCD驱动程序移植[J].计算机与现代化,2011(1):14-17.
[5]吴继华,蔡海宁,王诚.Altera FPGA/CPLD设计(高级篇)[M].北京:人民邮电出版社,2011.
[6]刘爽,赵凯生,龙再川,等.基于ARM和FPGA的嵌入式CCD采集系统[J].光电子·激光,2007,18(11):1296-1298.
[7]Altera Corporation.Cyclone II device handbook[EB/OL].[2013-11-6].http://www.altera.com.
[8]ZHU Jiayi,LIU Peilin,ZHOU Dajiang.An SDRAM controller optimized for high definition video coding application[C]//Proc.ISCAS.Seattle:IEEE Press,2008:3518-3521.
[9]干莽,齐贵宝,陈捷,等.基于FPGA与SDRAM的高效LCD控制器设计[J].吉林大学学报:信息科学版,2013,31(4):380-384.