video overlay

基本解释

WMR 9 will never use overlay video, so it can always be mirrored on the PSP.
WMR 9决不会使用覆盖视频，所以它可以随时反映问题的PSP 。
Radiation levels and alarms are reported on a video overlay that appears over the surveillance video and can be viewed or recorded on existing video surveillance hardware.
辐射水平和报警报告覆盖的视频出现在监控录像里，可以查看现有的视频监控硬件记录。
www.21csp.com.cn
Auditude allows them to add a video overlay to the clip, advertising the content source, the original broadcast date, and links to purchase the entire episode or other related content.
Auditude允许MTV在这些视频上添加一个覆盖层，并显示内容来源、原始发布日期，并可以添加购买完整内容的链接。

They forgot to mention this when they published the video (an overlay has now been added at the appropriate moments on YouTube).
FORBES: Nokia's Errors Over Faked Windows Phone Ads May Have One Positive Benefit
One big challenge was figuring out how to overlay prerecorded video or other stored content on live video.
FORBES: Magazine Article
Indeed, even that video showed me an overlay banner ad for a local real estate company, for some unfathomable reason.
FORBES: Move up http://i.forbesimg.com t Move down