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1.发明公开A system and method for whiteboard and audio capture 审中-公开Ein系统和Verfahren zur weissen Tafel和Audioerfassung
公开(公告)号：EP1388794A2
公开(公告)日：2004-02-11
申请号：EP03012896.1
申请日：2003-06-06
Applicant: MICROSOFT CORPORATION
Inventor： Zhang, Zhengyou , Cutler, Ross , He, Li-Wei , Gupta, Anoop , Liu, Zicheng
IPC: G06F17/30
CPC classification number: G06F17/30843 , G06Q10/1095 , G11B27/105 , G11B27/28 , G11B27/34 , H04N5/77 , H04N9/806
Abstract: A system that captures both whiteboard content and audio signals of a meeting using a digital camera and a microphone. The system can be retrofit to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. The whiteboard content serves as a visual index to efficiently browse the audio meeting. The system not only captures the whiteboard content, but also helps the users to view and manage the captured meeting content efficiently and securely.
Abstract translation: 使用数码相机和麦克风捕获会议的白板内容和音频信号的系统。 该系统可以改装任何现有的白板。 它通过分析捕获的快照的顺序来计算白板上笔划的时间戳。 它也会在每个擦除之前自动产生代表白板上所有写入内容的一组关键帧。 白板内容作为视觉索引，有效地浏览音频会议。 该系统不仅可以捕获白板内容，还可以帮助用户有效，安全地查看和管理所捕获的会议内容。
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公开(公告)号：EP1377041A3
公开(公告)日：2004-08-25
申请号：EP03011945.7
申请日：2003-05-27
Applicant: MICROSOFT CORPORATION
Inventor： Cutler, Ross , Gupta, Anoop , Tashev, Ivan , Rui, Yong
CPC classification number: H04R3/02 , H04N5/2259 , H04N5/23203 , H04N7/142 , H04R2201/401
Abstract: 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.
Abstract translation: 提出了一种带有集成麦克风阵列的全向相机（360度相机）。 这种摄像机的主要应用是视频会议和会议录制，并且该设备被设计为放置在会议室桌子上。 麦克风阵列处于平面配置，麦克风尽可能靠近桌面，以消除桌面上的声音反射。 摄像机通过一个薄的圆柱形杆连接到麦克风阵列基座，麦克风阵列对于频率范围[50-4000] Hz在声学上不可见。 这提供了从人通话到阵列中的所有麦克风的直接路径，并且因此可以用于声源定位（确定讲话者的位置）和波束形成（通过仅过滤仅改善讲话者的音质 来自特定方向的声音）。 相机阵列从桌子上抬起，以提供会议参与者的近前方观点。
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Patent Agency Ranking3.发明公开Integrated design for omni-directional camera and microphone array 有权Integriertes Designfüreine omnidirektionale Kamera- und Mikrophonanordnung
公开(公告)号：EP1377041A2
公开(公告)日：2004-01-02
申请号：EP03011945.7
申请日：2003-05-27
Applicant: MICROSOFT CORPORATION
Inventor： Cutler, Ross , Gupta, Anoop , Tashev, Ivan , Rui, Yong
IPC: H04N5/232
CPC classification number: H04R3/02 , H04N5/2259 , H04N5/23203 , H04N7/142 , H04R2201/401
Abstract: 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.
Abstract translation: 提出了一个集成式麦克风阵列的全向摄像头（360度摄像头）。 这种相机的主要应用是视频会议和会议录制，设备被设计在会议室桌子上。 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。 相机连接到麦克风阵列基座上，并带有一个薄的圆柱形杆，麦克风阵列在声学上不可见，频率范围为Ä50-4000赫兹。 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（仅通过滤波来改善讲话者的声音质量 来自特定方向的声音）。 摄像机阵列从表中提升，以提供会议参与者的近期前景。
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公开(公告)号：EP1377026A2
公开(公告)日：2004-01-02
申请号：EP03011767.5
申请日：2003-05-23
Applicant: MICROSOFT CORPORATION
Inventor： Cutler, Ross
IPC: H04N1/387
CPC classification number: G06T5/40 , G06T5/008 , G06T7/30 , G06T2200/32 , G06T2207/20221 , G06T2207/30201 , H04N1/3876 , H04N1/6027 , H04N5/23238 , H04N5/247 , H04N9/73 , H04N17/002
Abstract: A practical, real-time calibration of digital omnidirectional cameras in the areas of de-vignetting, brightness, contrast, and white balance control. Novel solutions for the color calibration of an omnidirectional camera rig, and an efficient method for devignetting images are presented. Additionally, a context-specific method of stitching images together into a panorama or a mosaic is provided.
Abstract translation: 数字全向摄像机在去晕影，亮度，对比度和白平衡控制方面的实用，实时校准。 提出了一种用于全向摄像机的颜色校准的新颖解决方案，以及一种有效的去角度偏移图像的方法。 另外，提供将图像拼接成全景图或马赛克的上下文特定方法。
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公开(公告)号：EP1388794A3
公开(公告)日：2012-02-22
申请号：EP03012896.1
申请日：2003-06-06
Applicant: MICROSOFT CORPORATION
Inventor： Zhang, Zhengyou , Cutler, Ross , He, Li-Wei , Gupta, Anoop , Liu, Zicheng
CPC classification number: G06F17/30843 , G06Q10/1095 , G11B27/105 , G11B27/28 , G11B27/34 , H04N5/77 , H04N9/806
Abstract: A system that captures both whiteboard content and audio signals of a meeting using a digital camera and a microphone. The system can be retrofit to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. The whiteboard content serves as a visual index to efficiently browse the audio meeting. The system not only captures the whiteboard content, but also helps the users to view and manage the captured meeting content efficiently and securely.
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公开(公告)号：EP1377041B1
公开(公告)日：2007-10-31
申请号：EP03011945.7
申请日：2003-05-27
Applicant: MICROSOFT CORPORATION
Inventor： Cutler, Ross , Gupta, Anoop , Tashev, Ivan , Rui, Yong
CPC classification number: H04R3/02 , H04N5/2259 , H04N5/23203 , H04N7/142 , H04R2201/401
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公开(公告)号：EP1377026A3
公开(公告)日：2004-03-10
申请号：EP03011767.5
申请日：2003-05-23
Applicant: MICROSOFT CORPORATION
Inventor： Cutler, Ross
IPC: H04N1/387
CPC classification number: G06T5/40 , G06T5/008 , G06T7/30 , G06T2200/32 , G06T2207/20221 , G06T2207/30201 , H04N1/3876 , H04N1/6027 , H04N5/23238 , H04N5/247 , H04N9/73 , H04N17/002
Abstract: A practical, real-time calibration of digital omnidirectional cameras in the areas of de-vignetting, brightness, contrast, and white balance control. Novel solutions for the color calibration of an omnidirectional camera rig, and an efficient method for devignetting images are presented. Additionally, a context-specific method of stitching images together into a panorama or a mosaic is provided.
Abstract translation: 数字全方位相机在去晕影，亮度，对比度和白平衡控制领域的实时实时校准。 提出了一种全方位摄像机颜色校准的新方案，以及一种有效的图像偏转方法。 此外，还提供了将图像拼接成全景图或镶嵌图的上下文特定方法。
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