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    • 43. 发明授权
    • Integrated design for omni-directional camera and microphone array
    • 全方位摄像头和麦克风阵列的集成设计
    • US07852369B2
    • 2010-12-14
    • US10184499
    • 2002-06-27
    • Ross CutlerIvan TashevYong RuiAnoop Gupta
    • Ross CutlerIvan TashevYong RuiAnoop Gupta
    • H04N7/14
    • H04R3/02H04N5/2259H04N5/23203H04N7/142H04R2201/401
    • An omni-directional camera (a 360 degree camera) is proposed with an integrated microphone array. The primary application for such a camera is videoconferencing and meeting recording, and the device is designed to be placed on a meeting room table. The microphone array is in a planar configuration, and the microphones are located as close to the desktop as possible to eliminate sound reflections from the table. The camera is connected to the microphone array base with a thin cylindrical rod, which is acoustically invisible to the microphone array for the frequency range [50-4000] Hz. This provides a direct path from the person talking to all of the microphones in the array, and can therefore be used for sound source localization (determining the location of the talker) and beam-forming (improving the sound quality of the talker by filtering only sound from a particular direction). The camera array is elevated from the table to provide a near frontal viewpoint of the meeting participants.
    • 提出了一种全方位摄像机(360度摄像机),集成了麦克风阵列。 这种相机的主要应用是视频会议和会议录制,设备被设计为放在会议室桌子上。 麦克风阵列处于平面配置,麦克风尽可能靠近桌面,以消除桌面的声音反射。 摄像机连接到麦克风阵列底座上,并带有一个薄的圆柱形杆,在[50-4000] Hz的频率范围内,麦克风阵列声学上不可见。 这提供了从人员通话到阵列中的所有麦克风的直接路径,因此可以用于声源定位(确定讲话者的位置)和波束形成(仅通过滤波来提高讲话者的声音质量 声音从特定的方向)。 相机阵列从表中提升,以提供会议参与者的近前视点。
    • 46. 发明授权
    • System and method for applying digital make-up in video conferencing
    • 在视频会议中应用数字化妆的系统和方法
    • US07612794B2
    • 2009-11-03
    • US11137252
    • 2005-05-25
    • Li-wei HeMichael CohenYong RuiShinichi Manaka
    • Li-wei HeMichael CohenYong RuiShinichi Manaka
    • H04N7/14G06K9/00
    • H04N7/147
    • A method of digitally adding the appearance of makeup to a videoconferencing participant. The system and method for applying digital make-up operates in a loop processing sequential video frames. For each input frame, there are typically three general steps: 1) Locating the face and eye and mouth regions; 2) Applying digital make-up to the face, preferably with the exception of the eye and open mouth areas; and 3) Blending the make-up region with the rest of the face. In one embodiment of the invention, the background in the frame containing a video conferencing participant can also be modified so that other video conferencing participants cannot clearly see the background behind the participant in the image frame. In one such embodiment of the invention, the video conferencing participant tries to make his or her own image look comical or altered. In another embodiment of the invention, a particular remote participant tries to make another participant look funny to the other participants.
    • 将化妆品外观数字化添加到视频会议参与者的方法。 用于应用数字化妆的系统和方法在循环处理顺序视频帧中操作。 对于每个输入框架,通常有三个一般步骤:1)定位脸部和眼睛和嘴部区域; 2)应用数字化妆面部,最好除了眼睛和开口区域外; 和3)将化妆区域与面部的其余部分混合。 在本发明的一个实施例中,还可以修改包含视频会议参与者的帧的背景,使得其他视频会议参与者不能清楚地看到图像帧中的参与者后面的背景。 在本发明的一个这样的实施例中,视频会议参与者尝试使他或她自己的图像看上去滑稽或改变。 在本发明的另一个实施例中,特定的远程参与者尝试使另一参与者对其他参与者看起来很滑稽。
    • 50. 发明授权
    • System and process for locating a speaker using 360 degree sound source localization
    • 使用360度声源定位来定位扬声器的系统和过程
    • US07039199B2
    • 2006-05-02
    • US10228210
    • 2002-08-26
    • Yong Rui
    • Yong Rui
    • H04R3/00H04N5/232H04N7/14
    • H04R3/005H04R2201/401
    • A system and process is described for estimating the location of a speaker using signals output by a microphone array characterized by multiple pairs of audio sensors. The location of a speaker is estimated by first determining whether the signal data contains human speech components and filtering out noise attributable to stationary sources. The location of the person speaking is then estimated using a time-delay-of-arrival based SSL technique on those parts of the data determined to contain human speech components. A consensus location for the speaker is computed from the individual location estimates associated with each pair of microphone array audio sensors taking into consideration the uncertainty of each estimate. A final consensus location is also computed from the individual consensus locations computed over a prescribed number of sampling periods using a temporal filtering technique.
    • 描述了一种系统和过程,用于使用由多对音频传感器表征的麦克风阵列输出的信号来估计扬声器的位置。 通过首先确定信号数据是否包含人类语音分量并滤除归因于固定源的噪声来估计扬声器的位置。 然后使用基于时间延迟的SSL技术来估计说话人的位置,以确定包含人类语音组件的数据的那些部分。 考虑到每个估计的不确定性,从与每对麦克风阵列音频传感器相关联的各个位置估计计算扬声器的共识位置。 还可以使用时间滤波技术从在规定数量的采样周期上计算的单个共识位置计算最终共识位置。