基于FPGA的非VESA标准视频信号转换显示系统的设计
|
摘要
提出了一种基于FPGA的非VESA标准视频信号转换显示系统的实现方法。经过视频信号检测、时序编解码、图像缩放和显示控制的处理,实现了非VESA标准视频信号在液晶屏上的显示。经验证,320×256分辨率时序的非标准视频信号,经过乒乓读写操作、双一维线性插值缩放算法的设计,可转换为符合VESA标准的视频信号,在640×480物理分辨率的液晶屏上指定的600×480像素区域进行显示。该方法采用单片FPGA芯片的设计实现,无需外部储存器,设计方法稳定可靠,为其他非标准视频信号的转换显示和图像缩放算法的实现提供了设计依据。
Design and implementation of one kind of non-VESA standard video signal conversion display system was introduced.With the deal of video signal detection,timing signal decoding and coding,image zooming and display control function,the goal of non-VESA standard video signal displaying on LCD was achieved.It was verified that with the design of ping-pong operations and double one dimensional linear interpolation algorithm,non-VESA standard video signal could be displayed in the specified area of 600×480 on the LCD with the resolution of 640×480.This design used one single FPGA chip without any external storage chip.In the meanwhile,this design was so stable and reliable that it could provide the basis for other non-standard video signal conversions and other image zooming algorithms.
Design and implementation of one kind of non-VESA standard video signal conversion display system was introduced.With the deal of video signal detection,timing signal decoding and coding,image zooming and display control function,the goal of non-VESA standard video signal displaying on LCD was achieved.It was verified that with the design of ping-pong operations and double one dimensional linear interpolation algorithm,non-VESA standard video signal could be displayed in the specified area of 600×480 on the LCD with the resolution of 640×480.This design used one single FPGA chip without any external storage chip.In the meanwhile,this design was so stable and reliable that it could provide the basis for other non-standard video signal conversions and other image zooming algorithms.
引文
[1]周旭,陈建军,窦亮,等.一种特殊分辨率视频信号的处理和显示方法[J].光电子技术,2016,36(3):195-199.
[2]陈全兵,习友保.基于双线性内插算法的多路视频缩放设计[J].电视技术,2015,39(1):43-46.
[3]唐爱民.双线性插值放大算法在视频图像实时放大处理系统中的应用[J].电子世界,2010,8(2):85-86.
[4]郑理华,丁效军,王华,等.基于FPGA的非标准视频转换算法[J].医疗卫生装备,2007,9(2):14-15.
[5]刘怡,黄自力,王经纬,等.FPGA双线性插值图像变换系统的设计与实现[J].中国测绘技术,2008,34(3):65-67.
[2]陈全兵,习友保.基于双线性内插算法的多路视频缩放设计[J].电视技术,2015,39(1):43-46.
[3]唐爱民.双线性插值放大算法在视频图像实时放大处理系统中的应用[J].电子世界,2010,8(2):85-86.
[4]郑理华,丁效军,王华,等.基于FPGA的非标准视频转换算法[J].医疗卫生装备,2007,9(2):14-15.
[5]刘怡,黄自力,王经纬,等.FPGA双线性插值图像变换系统的设计与实现[J].中国测绘技术,2008,34(3):65-67.