Video superimposing is widely used in DTV implement, which includes both TV logo insertion and caption adding.

在实际的数字电视技术应用中，以图文字幕叠加的应用最为常见。

youdao

Video superimposing is widely used in DTV implement, which includes both TV logo insertion and caption adding.

在实际的数字电视技术应用中，以图文字幕叠加的应用最为常见。

youdao