| DVI数字视频图像数据的实时截取方法 |
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| 引用本文： | 龙在云,武斌.DVI数字视频图像数据的实时截取方法[J].电视技术,2010,34(2). |
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| 作者姓名： | 龙在云 武斌 |
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| 作者单位： | 河北建筑工程学院,河北,张家口,075024 |
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| 摘 要： | 介绍了一种基于DVI接口的高分辨力数字视频信号进行实时截取的方法,图像截取采用了动态实时调整行列起点、按行组包的方法,利用FPGA内嵌双口FIFO,实现高分辨力图像数据的实时截取和降频实时传输。该方法可以省去外部缓存SRAM操作,扩大图像截取范围,可广泛运用于数字平板显示系统。
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| 关 键 词： | DVI 数字视频 FPGA FIFO 降频 |
Real-time Intercept Method of DVI Digital Video Image Datas |
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| LONG Zai-yun,WU Bin.Real-time Intercept Method of DVI Digital Video Image Datas[J].Tv Engineering,2010,34(2). |
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| Authors: | LONG Zai-yun WU Bin |
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| Institution: | Hebei Institute of Architecure and Engineering;Hebei Zhangjiakou 075024;China |
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| Abstract: | A new real-time data intercept method for high resolution digital video singal is proposed based on DVI interface.The method uses dynamic real-time adjustable range starting point and data packet by line-buffer.Real-time intercepting of high resolution images data and real-time transport with decreasing frequency are realised by FPGA embedded Dual-port FIFO.This design can eliminate the need for an external cache SRAM operation and enlarge image intercept range.It can be widely used in panal display system. |
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| Keywords: | DVI digital video FPGA FIFO frequency decreasing |
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