MANIPULATING VIDEO STREAMS
    1.
    发明申请
    MANIPULATING VIDEO STREAMS 审中-公开
    操纵视频流

    公开(公告)号:US20080303949A1

    公开(公告)日:2008-12-11

    申请号:US11760723

    申请日:2007-06-08

    IPC分类号: H04N9/74

    CPC分类号: H04N9/74 H04N7/147

    摘要: Methods, systems and apparatus, including computer program products, for manipulating video streams in videoconference session. A reference background image is identified from a first video frame in a video stream of a videoconferencing environment. A subsequent video frame from the video stream is received. Areas of the subsequent video frame corresponding to a foreground area are identified. The foreground area includes pixels of the subsequent video frame that are different from corresponding pixels in the first video frame. The foreground area is transformed based on a selected image transformation. The transformed foreground area is composited onto the reference background image into a composite video frame.

    摘要翻译: 方法,系统和设备,包括用于在视频会议会话中操纵视频流的计算机程序产品。 从视频会议环境的视频流中的第一视频帧识别参考背景图像。 接收来自视频流的后续视频帧。 识别与前景区域相对应的后续视频帧的区域。 前景区域包括与第一视频帧中的对应像素不同的后续视频帧的像素。 基于所选择的图像变换来变换前景区域。 变换的前景区域被合成到参考背景图像到复合视频帧。