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    • 1. 发明授权
    • Video switching system and method
    • 视频切换系统及方法
    • US08471891B2
    • 2013-06-25
    • US13095891
    • 2011-04-28
    • Chih-Huang WangHsieh-Fu Tsai
    • Chih-Huang WangHsieh-Fu Tsai
    • H04N7/15H04N7/14
    • H04N7/152
    • A video switching system detects speaking information of at least one speaker in a video conference according to a reference time. One participant is regarded as one speaker if the one participant speaks longer than the reference time. The video switching system determines a main speaker of the at least one speaker according to the speaking information of the at least one speaker. The video switching system calculates an image switching frequency, and determines whether to switch to a video image of the main speaker according to the image switching frequency. The video switching system calculates a response time if determining to switch to the video image of the main speaker, and adjusts the reference time according to the image switching frequency and the response time.
    • 视频切换系统根据参考时间检测视频会议中的至少一个扬声器的说话信息。 如果一个参与者比参考时间长的话,一个参与者被认为是一个发言者。 视频切换系统根据至少一个扬声器的说话信息确定至少一个扬声器的主扬声器。 视频切换系统计算图像切换频率,并且根据图像切换频率来确定是否切换到主扬声器的视频图像。 如果确定切换到主扬声器的视频图像,则视频切换系统计算响应时间,并根据图像切换频率和响应时间来调整基准时间。
    • 2. 发明申请
    • VIDEO SWITCHING SYSTEM AND METHOD
    • 视频切换系统及方法
    • US20120212571A1
    • 2012-08-23
    • US13095891
    • 2011-04-28
    • CHIH-HUANG WANGHSIEH-FU TSAI
    • CHIH-HUANG WANGHSIEH-FU TSAI
    • H04N7/15
    • H04N7/152
    • A video switching system detects speaking information of at least one speaker in a video conference according to a reference time. One participant is regarded as one speaker if the one participant speaks longer than the reference time. The video switching system determines a main speaker of the at least one speaker according to the speaking information of the at least one speaker. The video switching system calculates an image switching frequency, and determines whether to switch to a video image of the main speaker according to the image switching frequency. The video switching system calculates a response time if determining to switch to the video image of the main speaker, and adjusts the reference time according to the image switching frequency and the response time.
    • 视频切换系统根据参考时间检测视频会议中的至少一个扬声器的说话信息。 如果一个参与者比参考时间长的话,一个参与者被认为是一个发言者。 视频切换系统根据至少一个扬声器的说话信息确定至少一个扬声器的主扬声器。 视频切换系统计算图像切换频率,并且根据图像切换频率来确定是否切换到主扬声器的视频图像。 如果确定切换到主扬声器的视频图像,则视频切换系统计算响应时间,并根据图像切换频率和响应时间来调整基准时间。