| 摘要 |
<p>A method, device and system for synchronous transmission of multi-channel videos are disclosed in embodiments of the present invention. At a video sending end, the method includes: obtaining at least two-channel videos, wherein each-channel video of the at least two-channel videos includes at least two continuous frame images respectively; adding a watermark to each frame image of the at least two-channel videos, wherein, the watermarks, which are added to the at least two frame images of the at least two-channel videos obtained at a same period, are identical; and sending the images, to which the watermarks are added, of the at least two-channel videos to a video reception end. At the video reception end, the method includes: receiving the images, to which the watermarks are added, of the at least two-channel videos; extracting corresponding watermark codes from each frame image of the at least two-channel videos by adopting an extraction mode matching the watermark adding mode at the video sending end; and exporting each frame image with the same watermark code of the at least two-channel videos simultaneously. The present invention applies to synchronous transmission of multi-channel videos in a multi-channel video transmission system.</p> |
