专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2006036066A1 METHOD FOR CODING A SECTIONAL VIDEO IMAGE 审中-公开
标题翻译：编码局部视频图像的方法
公开(公告)号：WO2006036066A1
公开(公告)日：2006-04-06
申请号：PCT/NO2005/000355
申请日：2005-09-26
申请人： TANDBERG TELECOM AS , JOHANSEN, Tom-Ivar
发明人： JOHANSEN, Tom-Ivar
IPC分类号： H04N7/15
CPC分类号： H04N19/17 , H04N19/124 , H04N19/132 , H04N19/162
摘要： The present invention utilizes video compression techniques in providing multi display and user control of picture layout with a single non-mechanical camera. According to a preferred embodiment of the present invention, a subsection of interest within a general view captured by the camera is coded based on the prediction of the main picture. In one aspect of the embodiment, scaling of the predicted pixel values in the subsection to match with the corresponding raw pixel data of extended resolution is carried out before subtracting the prediction from the raw data to provide the residual in the coding process. In a second aspect, the frame rate and the number of quantization intervals are increased when coding the subsection relative to the coding of the general view.
摘要翻译：本发明利用视频压缩技术，利用单个非机械相机提供图像布局的多显示和用户控制。根据本发明的优选实施例，基于主图像的预测对由相机捕获的一般视图内的兴趣小节进行编码。在该实施例的一个方面中，在从原始数据中减去预测之前，进行子部分中预测像素值的缩放以与扩展分辨率的对应的原始像素数据进行比较，以在编码处理中提供残差。在第二方面，当编码该子部分相对于一般视图的编码时，帧速率和量化间隔的数量增加。

2. 发明申请

WO2004105399A1 METHOD AND APPARATUS FOR VIDEO COMPRESSION 审中-公开
标题翻译：视频压缩的方法和装置
公开(公告)号：WO2004105399A1
公开(公告)日：2004-12-02
申请号：PCT/NO2004/000121
申请日：2004-04-29
申请人： TANDBERG TELECOM AS , JOHANSEN, Tom-Ivar , BJØNTEGAARD, Gisle
发明人： JOHANSEN, Tom-Ivar , BJØNTEGAARD, Gisle
IPC分类号： H04N7/50
CPC分类号： H04N19/85 , H04N19/186 , H04N19/593 , H04N19/60
摘要： The invention is related to handling various picture resolution in an extended version of the compression standard H.264/AVC or other similar standards. The present invention provides an extension of the standard to include formats like the above-described 4:2:2 and 4:4:4. The method is based on the way chrominance is already treated in H.264/AVC.
摘要翻译：本发明涉及在压缩标准H.264 / AVC或其它类似标准的扩展版本中处理各种图像分辨率。本发明提供了标准的扩展，以包括如上述4：2：2和4：4：4的格式。该方法基于H.264 / AVC中色度已被处理的方式。

3. 发明申请

WO2005079068A1 ARRANGEMENT AND METHOD FOR GENERATING CONTINUOUS PRESENCE IMAGES 审中-公开
标题翻译：用于产生连续存在图像的布置和方法
公开(公告)号：WO2005079068A1
公开(公告)日：2005-08-25
申请号：PCT/NO2005/000050
申请日：2005-02-11
申请人： TANDBERG TELECOM AS , LIA, Tom, Erik , JOHANSEN, Tom-Ivar
发明人： LIA, Tom, Erik , JOHANSEN, Tom-Ivar
IPC分类号： H04N7/15
CPC分类号： H04N7/152 , H04N7/157
摘要： The present invention relates to generating Continuous Presence (CP) images in a Multipoint Control Unit (MCU) managing a multisite videoconference. The invention utilises the bit structure of the ITU H.26* standards to reduce the processing time and requirements in an MCU for generating CP views without self-view. By rearranging macroblocks from coded CP images, regions in a CP image may be removed so as allow transmitting CP images without self view to the participating sites. The rearranging procedure significantly reduces the requirement of encoder resources in an MCU.
摘要翻译：本发明涉及在管理多站点视频会议的多点控制单元（MCU）中产生连续存在（CP）图像。本发明利用ITU H.26 *标准的比特结构来减少MCU中用于生成CP视图而不进行自我查看的处理时间和要求。通过从编码的CP图像重新排列宏块，可以去除CP图像中的区域，以便允许将CP图像无自身地发送到参与站点。重新布置过程显着降低了MCU中编码器资源的需求。

4. 发明申请

WO2004043074A1 INTER-NETWORK AND INTER-PROTOCOL VIDEO CONFERENCE PRIVACY METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：互联网和互联网协议视频会议隐私方法，设备和计算机程序产品
公开(公告)号：WO2004043074A1
公开(公告)日：2004-05-21
申请号：PCT/NO2003/000371
申请日：2003-11-04
申请人： TANDBERG TELECOM AS , FULDSETH, Arild , KALJORD, Andreas , JOHANSEN, Tom-Ivar , MIDTSKOGEN, Steinar
发明人： FULDSETH, Arild , KALJORD, Andreas , JOHANSEN, Tom-Ivar , MIDTSKOGEN, Steinar
IPC分类号： H04N7/68
CPC分类号： H04N7/15 , H04L9/083 , H04L9/0841 , H04L9/12 , H04L63/0428 , H04L2209/30 , H04L2209/56 , H04L2209/80 , H04L2463/062 , H04N19/61 , H04N19/895
摘要： A system, apparatus, method and computer program product for detecting and correcting packet losses that adversely affect video quality. This packet loss feature may be employed as part of the secure video conference system, method and computer program product, or be employed in a non-secure system, method and computer program product.
摘要翻译：一种用于检测和校正对视频质量有不利影响的分组丢失的系统，装置，方法和计算机程序产品。该分组丢失特征可以被用作安全视频会议系统，方法和计算机程序产品的一部分，或者可以用在非安全系统，方法和计算机程序产品中。

5. 发明申请

WO2005122576A1 SYSTEM AND METHOD FOR PRESENCE DETETION 审中-公开
标题翻译：用于存在检测的系统和方法
公开(公告)号：WO2005122576A1
公开(公告)日：2005-12-22
申请号：PCT/NO2005/000193
申请日：2005-06-07
申请人： TANDBERG TELECOM AS , AALBU, Lars, Erik , JOHANSEN, Tom-Ivar
发明人： AALBU, Lars, Erik , JOHANSEN, Tom-Ivar
IPC分类号： H04N7/15
CPC分类号： G01S13/04 , G06K9/00228 , G06K9/00771
摘要： The present invention discloses a system and method for automatically detecting the presence of a user in a presence application. The presence detection is provided by active detection mechanisms monitoring the localities near the endpoint or terminal connected to the application. The presence information is centrally stored in a presence server collecting the information directly from the respective user terminals. According to preferred embodiments of the present invention, presence is determined i.a. by means of radar detection, infrared light detection, video processing and face detection/recognition.
摘要翻译：本发明公开了一种用于在存在应用中自动检测用户的存在的系统和方法。通过主动检测机制来监视存在检测，监视连接到应用的端点或终端附近的地点。存在信息被集中存储在直接从各个用户终端收集信息的存在服务器中。根据本发明的优选实施例，通过雷达检测，红外光检测，视频处理和人脸检测/识别。

6. 发明申请

WO2005048600A1 DISTRIBUTED REAL-TIME MEDIA COMPOSER 审中-公开
标题翻译：分布式实时媒体组合
公开(公告)号：WO2005048600A1
公开(公告)日：2005-05-26
申请号：PCT/NO2004/000344
申请日：2004-11-15
申请人： TANDBERG TELECOM AS , JOHANSEN, Tom-Ivar , SANDBAKKEN, Geir, Arne
发明人： JOHANSEN, Tom-Ivar , SANDBAKKEN, Geir, Arne
IPC分类号： H04N7/15
CPC分类号： H04N7/152 , H04L65/403 , H04M3/562 , H04M3/567 , H04N7/14 , H04N7/15
摘要： A system and a method allowing simultaneous exchange of audio, video and/or data information between a plurality of units over a communication network, supported by a central unit, wherein that the central unit is, based on knowledge regarding one or more of the units, adapted to instruct said one or more units to generate multimedia data streams adjusted to fit into certain restrictions to be presented on other units participating in a same session.
摘要翻译：一种允许在通过中央单元支持的通信网络上的多个单元之间同时交换音频，视频和/或数据信息的系统和方法，其中所述中央单元基于关于一个或多个单元的知识适于指示所述一个或多个单元产生被调整以适应要在其他参与相同会话的单元呈现的某些限制的多媒体数据流。

7. 发明申请

WO2004100546A1 AN ARRANGEMENT AND METHOD FOR AUDIO SOURCE TRACKING 审中-公开
标题翻译：音频源跟踪的安排和方法
公开(公告)号：WO2004100546A1
公开(公告)日：2004-11-18
申请号：PCT/NO2004/000076
申请日：2004-03-19
申请人： TANDBERG TELECOM AS , MUREN, Petter , MARTON, Trygve, Frederik , JOHANSEN, Tom-Ivar
发明人： MUREN, Petter , MARTON, Trygve, Frederik , JOHANSEN, Tom-Ivar
IPC分类号： H04N7/15
CPC分类号： H04N7/15 , H04R27/00
摘要： The present invention discloses an arrangement and a method of localizing active speakers in a video conference. According to a preferred embodiment of the invention, a localization device locates one or more microphones relative to the camera, while the microphone(s) in turn localize the audio source relative to their own position(s). As the microphone(s) is/are usually positioned close to the audio source in a video conference, the ratio of the distance between microphones (or microphone elements) relative to the distance between table microphone and audio source is reduced. Thus, the microphone(s) is/are able to determine the position of the audio source with a higher resolution than if placed close to the camera. When the respective positions of the microphone(s) relative to the camera and the audio source are known, the position of the audio source relative to the camera is then determined by means of geometrical calculations.
摘要翻译：本发明公开了一种在视频会议中定位主动扬声器的装置和方法。根据本发明的优选实施例，定位装置相对于相机定位一个或多个麦克风，而麦克风又相对于它们自己的位置定位音频源。由于麦克风通常在视频会议中靠近音频源放置，麦克风（或麦克风元件）之间的距离相对于桌麦克风和音频源之间的距离的比例将会降低。因此，麦克风能够以比放置在相机附近更高的分辨率来确定音频源的位置。当麦克风相对于相机和音频源的相应位置是已知的时，音频源相对于相机的位置然后通过几何计算来确定。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式