cvbs meaning in Chinese
合成视频
Examples
- Digital image processing consume a large amount of memory and time commonly . basing on the advantage of fpga , the paper design harware module by hdl ( hardware language ) , i . e . , some function is achieved by les ( logic element ) of the fpga . the real - time of digital image processing is achieved by this . the sample and display of digital image is the important part . so , the paper mainly design the sample and desplay module . the sample card is designed and it ’ s word mode is configured according china ’ s cvbs ( composite video bar signal ) . for acquiring the image and storing it correctly to sram , the paper design the sample - control module . the sample module can work correctly using least time . the reliability and real - time achieve the reference . according the vga principle and scheduling of the ths8134 , the paper design a vga - control module by hdl . firstly , the control signal is synthesized secondly , the horirontal and vertical synchronization signals is synthesized according to the vga interface standard
图像处理的特点是处理的数据量大,处理非常耗时,为实现数字图像的实时处理,本文研究了在fpga上用硬件描述语言实现功能模块的方法,通过功能模块的硬件化,解决了视频图像处理的速度问题。图像数据的正确采集和显示输出是其中的两个重要的模块,因此,本文主要完成了图像数据的采集和显示输出的设计。本文设计了采集卡,并要对其工作模式进行了配置和编写了采集控制模块,在采集控制模块的控制下,将数字图像数据正确无误的存储到了sram中。