视频（Video）泛指将一系列静态影像以电信号的方式加以捕捉、纪录、处理、储存、传送与重现的各种技术。连续的图像变化每秒超过24帧（frame）画面以上时，根据视觉暂留原理，人眼无法辨别单幅的静态画面；看上去是平滑连续的视觉效果，这样连续的画面叫做视频。视频技术最早是为了电视系统而发展，但现在已经发展为各种不同的格式以利消费者将视频记录下来。网络技术的发达也促使视频的纪录片段以串流媒体的形式存在于因特网之上并可被电脑接收与播放。视频与电影属于不同的技术，后者是利用照相术将动态的影像捕捉为一系列的静态照片。(Video (Video) refers to a variety of techniques that capture, record, process, store, transmit and reproduce a series of static images in electrical signals. The image changes of more than 24 frames per second continuous (frame) picture above, according to the principle of persistence of vision, the human eye can not distinguish the single static images; visual effect appears to be smooth and continuous, so called continuous video images. Video technology was originally developed for television systems, but now it has developed into different formats to help consumers record videos. The development of network technology also promotes the video clips in the form of streaming media exist on the Internet, and can be received and played by the computer. Video and film belong to different technologies, the latter is the use of photography to capture dynamic images as a series of static photos.)