A general look at the open Web technologies and APIs that provide support for audio and video playback, manipulation, and recording. If you're not sure which API you should use, this is the place to start. Accessibility guide for media in web design In this guide, we cover ways web designers and developers can create content that is accessible to people with different capabilities. This ranges from simply using the alt attribute on <image> elements to captions to tagging media for screen readers.

CCD sensor,heterogeneous software; test model; CCD model; test method