Video 视频
（重定向自Analog video）
![Comparison of common cinematography and traditional television (green) aspect ratios](/Images/godic/202412/20/Aspect_ratios.svg1653.png")
![Example of U-V color plane, Y value=0.5](/Images/godic/202412/20/YUV_UV_plane.svg1653.png")
![模拟视频标准在世界各地的分布：亮绿 - NTSC，黄 - PAL，或即将采用PAL，橘 - SECAM，橄榄 - 无相关数据](/Images/godic/202412/20/NTSC-PAL-SECAM.svg1653.png")
![传统电视（绿）与常见的电影画面长宽比例之比较](/Images/godic/202412/20/Aspect_ratios1653.png")
Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.
Video systems vary greatly in the resolution of the display, how they are refreshed, and the rate of refreshed, and 3D video systems exist. They can also be carried on a variety of media, including radio broadcast, tapes, DVDs, computer files etc.