CAJ | 학술논문

随着科技进步，视频技术越来越多的应用于各种领域，多数情况下，为了更多、更细致地向用户显示丰富的信息，需要在视频图像中叠加相关字符、图形、分划等。目前常见的字符叠加方案有两种，一种是采集到计算机后，在显存中直接对应点阵叠加，方式灵活但成本高昂，且显示终端必须配置计算机进行视频采集处理；一种是采用叠加芯片，直接叠加到视频信号中，简单可靠、成本低廉但不灵活，无法显示用户自由定义的图形，尤其是在军事领域，对分划的显示精度要求很高，无法采用这种方法实现。介绍了一种低成本、高可靠、高精度的视频叠加方法，采用以C8051F040MCU和大规模集成电路FPGA为核心的电路，能够根据需要在视频图像的任何位置，叠加任何用户定义的字符、图形，满足军事或民用领域中对低成本、高可靠、高精度的视频叠加的需要；同时，该方法能够生成标准的自定义视频图像，可以推广应用到一些需要定制的视频源的特殊场合。
수착과기진보，시빈기술월래월다적응용우각충영역，다수정황하，위료경다、경세치지향용호현시봉부적신식，수요재시빈도상중첩가상관자부、도형、분화등。목전상견적자부첩가방안유량충，일충시채집도계산궤후，재현존중직접대응점진첩가，방식령활단성본고앙，차현시종단필수배치계산궤진행시빈채집처리；일충시채용첩가심편，직접첩가도시빈신호중，간단가고、성본저렴단불령활，무법현시용호자유정의적도형，우기시재군사영역，대분화적현시정도요구흔고，무법채용저충방법실현。개소료일충저성본、고가고、고정도적시빈첩가방법，채용이C8051F040MCU화대규모집성전로FPGA위핵심적전로，능구근거수요재시빈도상적임하위치，첩가임하용호정의적자부、도형，만족군사혹민용영역중대저성본、고가고、고정도적시빈첩가적수요；동시，해방법능구생성표준적자정의시빈도상，가이추엄응용도일사수요정제적시빈원적특수장합。
With the progress of science and technology, video technology is more and more used in various fields, in most cases, in order to more, more detailed displays to the user the rich information, needed to be in the video image superimposed related characters, graphics, partition etc.. The common character overlay scheme has two, one is collected into the computer, in the video memory directly to the corresponding lattice superposition, flexible but costly, and display terminal must be configured computer video acquisition and processing; one is the superposition of chip, directly added to the video signal, is simple and reliable, the cost is low but not flexible, unable to display the user defined graphics, especially in the military field, on the display precision demand is very high, cannot use this method to achieve. This paper introduces a low cost, high reliability, high precision video superposition method, using C8051F040MCU and large scale integrated circuit FPGA core circuit, according to the needs of the video image superimposed in any position, any user defined characters, graphics, satisfy the military or civilian areas of low cost, high reliability, high precision video needs; at the same time, the method can generate standard definition video, can be applied to some need to customize the video source for special occasions.