公开(公告)号：US20070013801A1

公开(公告)日：2007-01-18

申请号：US11534218

申请日：2006-09-22

申请人： Muhammed Sezan ,  Bernd Girod

发明人： Muhammed Sezan ,  Bernd Girod

IPC分类号： H04N5/225

CPC分类号： H04N7/183 ,  H04N1/00291 ,  H04N1/00307 ,  H04N5/232 ,  H04N5/23206 ,  H04N5/23225 ,  H04N2201/0039 ,  H04N2201/0055 ,  H04N2201/0084

摘要： Embodiments of the present invention comprise methods and systems for input device to television networking.

摘要翻译： 本发明的实施例包括用于输入设备到电视网络的方法和系统。

公开(公告)号：US06480541B1

公开(公告)日：2002-11-12

申请号：US09177406

申请日：1998-10-23

申请人： Bernd Girod ,  Staffan Ericsson ,  Yuriy A. Resnik ,  Nikolaus Färber

发明人： Bernd Girod ,  Staffan Ericsson ,  Yuriy A. Resnik ,  Nikolaus Färber

IPC分类号： A04B166

CPC分类号： H04N9/8042 ,  H04N19/105 ,  H04N19/12 ,  H04N19/152 ,  H04N19/172 ,  H04N19/187 ,  H04N19/39 ,  H04N19/51 ,  H04N19/59 ,  H04N19/61 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/2662 ,  H04N21/6379 ,  H04N21/64769

摘要： A method for generating a digital motion video sequence at a plurality of bit rates uses a transitional coding source when switching between bitstreams having different bit rates during transmission of a video sequence. The transitional data may be frames coded using reconstructed frames reconstructed for a first bitstream using the characteristics of the second bitstream. These “low bit rate insert frames,” or LBIFs, contain the image characteristics of a signal coded at the lower bit rate. With a bitstream having a higher bit rate being periodically coded using an LBIF, a point of image continuity between the two bitstreams is provided. Thus, switching from one bitstream to the other at this point in the video sequence minimizes the production of artifacts caused by differences in bit rate. In another embodiment of the invention, a separate set of transitional data is created, taking the form of “switch” frames, or S-frames. The S-frames are typically the difference between a frame of a first bitstream and a frame of a second bitstream. These frames are inserted into the decoded bitstream during the transition from one bitstream to the other, and compensate for any visual artifacts that might otherwise occur due to the difference in bit rate of the two bitstreams.

摘要翻译： 用于在多个比特率下生成数字运动视频序列的方法在视频序列的传输期间切换具有不同比特率的比特流时使用过渡编码源。 过渡数据可以是使用第二比特流的特征对使用针对第一比特流重建的重构帧进行编码的帧。 这些“低比特率插入帧”或LBIF包含以较低比特率编码的信号的图像特征。 利用具有较高比特率的比特流，使用LBIF周期性地编码，提供两个比特流之间的图像连续性点。 因此，在视频序列中的这一点上，从一个比特流切换到另一个比特流使得由比特率差异引起的伪像的产生最小化。 在本发明的另一实施例中，以“切换”帧或S帧的形式创建单独的一组过渡数据。 S帧通常是第一比特流的帧和第二比特流的帧之间的差。 在从一个比特流到另一比特流的转换期间，这些帧被插入解码的比特流中，并且补偿由于两个比特流的比特率的差异而可能出现的任何视觉伪像。

公开(公告)号：US06112219A

公开(公告)日：2000-08-29

申请号：US125590

申请日：1993-09-23

申请人： Bernd Girod ,  Staffan Ericsson

发明人： Bernd Girod ,  Staffan Ericsson

IPC分类号： G06F1/035 ,  G06F17/14

CPC分类号： G06F17/147 ,  G06F1/0356

摘要： A method is provided for performing a fast Discrete Cosine Transform (DCT) and a fast Inverse Discrete Cosine Transform (IDCT) in a software implementation. The method provided exploits symmetries found in both the DCT and IDCT. As a result of the symmetries found in the DCT and IDCT, both transforms may be performed using a combination of look-up tables and butterfly operations, thus employing only a small number of additions and subtractions and no multiplications. Furthermore, there is provided an aspect of the present invention which exploits the excess precision available in current central processing units (CPUs) relative to the precision required by the DCT and IDCT calculations.

摘要翻译： 提供了一种用于在软件实现中执行快速离散余弦变换（DCT）和快速逆离散余弦变换（IDCT）的方法。 所提供的方法利用了DCT和IDCT中的对称性。 作为在DCT和IDCT中发现的对称性的结果，可以使用查找表和蝶形运算的组合来执行两个变换，因此仅使用少量的加法和减法而不进行乘法运算。 此外，提供了本发明的一个方面，其利用了当前中央处理单元（CPU）中可用于与DCT和IDCT计算所需的精度相关的多余精度。

公开(公告)号：US5809139A

公开(公告)日：1998-09-15

申请号：US710246

申请日：1996-09-13

申请人： Bernd Girod ,  Frank H. D. Hartung

发明人： Bernd Girod ,  Frank H. D. Hartung

IPC分类号： G06T1/00 ,  H04N5/913 ,  H04N7/26 ,  H04N7/50 ,  H04N7/167

CPC分类号： H04N21/8358 ,  G06T1/0035 ,  H04N19/00 ,  H04N19/40 ,  H04N19/467 ,  H04N19/61 ,  H04N21/23892 ,  H04N5/913 ,  G06T2201/0052 ,  G06T2201/0053 ,  H04N2005/91335

摘要： A digital watermarking method and apparatus allows for the watermarking of a digital video signal in a compressed form, thereby allowing watermarking of a pre-compressed video sequence without requiring the decoding and re-coding of the signal. The watermark signal is a sequence of information bits which has been modulated by a pseudo-random noise sequence to spread it in the frequency domain. The video signal is transform coded, preferably with a discrete cosine transform, and a watermark signal, which has been transform coded using the same type of transform, is added to the coded video signal. The system also includes bitstream control to prevent an increase in the bit rate of the video signal. This allows the system to be used with transmission channels having strict bit rate constraints. For each transform coefficient of the video signal, the number of bits necessary to encode the watermarked coefficient is compared to the number of bits necessary to encode the unwatermarked coefficient. If more bits are required to transmit a watermarked coefficient than to transmit the corresponding unwatermarked coefficient, the watermarked coefficient is not output, and the unwatermarked coefficient is output in its place. When watermarking interframe coded data, a drift compensation signal may be used to compensate for the accumulating variations in the decoded video signal stored at the receiver. The system may also include an encryption/decryption capability, with the watermarking apparatus located at either the transmitting or receiving end of the transmission channel.

摘要翻译： 数字水印方法和装置允许以压缩形式对数字视频信号进行水印处理，从而允许预压缩视频序列的水印，而不需要信号的解码和重新编码。 水印信号是已经由伪随机噪声序列调制的信息比特序列，以在频域中进行扩展。 视频信号优选地用离散余弦变换进行变换编码，并且已经使用相同类型的变换进行变换编码的水印信号被加到编码视频信号中。 该系统还包括比特流控制以防止视频信号的比特率的增加。 这允许系统与具有严格比特率约束的传输信道一起使用。 对于视频信号的每个变换系数，将对水印系数进行编码所必需的比特数与对未加密系数进行编码所需的比特数进行比较。 如果需要更多的比特来发送水印系数而不是发送相应的未水印系数，则不输出水印系数，并且在其位置输出未水印的系数。 当水印帧间编码数据时，可以使用漂移补偿信号来补偿存储在接收机中的解码视频信号中的累积变化。 该系统还可以包括加密/解密能力，其中水印设备位于传输信道的发送端或接收端。

公开(公告)号：US5150209A

公开(公告)日：1992-09-22

申请号：US698396

申请日：1991-05-10

申请人： Richard L. Baker ,  Jeffrey Bernstein ,  Bernd Girod ,  Xiancheng Yuan ,  Edmund Thompson

发明人： Richard L. Baker ,  Jeffrey Bernstein ,  Bernd Girod ,  Xiancheng Yuan ,  Edmund Thompson

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/28 ,  H04N7/46

CPC分类号： G06T9/008 ,  H04N19/00 ,  H04N19/186 ,  H04N19/577 ,  H04N19/61 ,  H04N19/63 ,  H04N19/94

摘要： A method and apparatus for encoding interframe error data in an image transmission system, and in particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, employ hierarchical entropy coded lattice threshold quantization to increase the data compression of the images being transmitted. The method and apparatus decimate an interframe predicted image data and an uncoded current image data, and apply hierarchical entropy coded lattice threshold quantization encoding to the resulting pyramid data structures. Lossy coding is applied on a level-by-level basis for generating the encoded data representation of the image difference between the predicted image data and the uncoded original image. The method and apparatus are applicable to systems transmitting a sequence of image frames (or other pattern data, such as speech) both with and without motion compensation.

摘要翻译： 一种用于对图像传输系统中的帧间错误数据进行编码的方法和装置，特别是在用于从发射机到接收机发送图像帧序列的运动补偿图像传输系统中，采用层次熵编码的格子阈值量化来增加数据 正在传输的图像的压缩。 所述方法和装置对帧间预测图像数据和未编码的当前图像数据进行抽取，并对所得到的金字塔数据结构应用分层熵编码的晶格阈值量化编码。 在逐级的基础上应用有损编码，用于生成预测图像数据和未经编码的原始图像之间的图像差的编码数据表示。 该方法和装置适用于传送具有和不具有运动补偿的图像帧序列（或诸如语音的其它图案数据）的系统。

公开(公告)号：US09805331B2

公开(公告)日：2017-10-31

申请号：US13023679

申请日：2011-02-09

申请人： Cheng-Hsin Hsu ,  Kyu-Han Kim ,  Jatinder Pal Singh ,  David M. Chen ,  Sam Tsai ,  Bernd Girod

发明人： Cheng-Hsin Hsu ,  Kyu-Han Kim ,  Jatinder Pal Singh ,  David M. Chen ,  Sam Tsai ,  Bernd Girod

IPC分类号： G06T15/04 ,  G06T17/00 ,  G06Q10/08

CPC分类号： G06Q10/087

摘要： A method of tracking an inventory of objects via a mobile communications device includes acquiring an image of one or more of the objects via the mobile communications device, which also collects a location of the mobile communications device while acquiring the image of the one or more of the objects. The location and image are transferred from the mobile communications device to a remote server via a wireless network, such that the one or more of the objects are identified at the server based on the image, and the location and identity of the one or more objects are stored on a database associated with the server.

公开(公告)号：US20110235499A1

公开(公告)日：2011-09-29

申请号：US13034714

申请日：2011-02-25

申请人： Badri N. Rajasekar ,  Chuo-Ling Chang ,  Gaurav Gupta ,  Bernd Girod ,  Yang Cao

发明人： Badri N. Rajasekar ,  Chuo-Ling Chang ,  Gaurav Gupta ,  Bernd Girod ,  Yang Cao

IPC分类号： H04J3/10

CPC分类号： H04M9/082

摘要： A system and method for performing echo suppression on a server in browser-based online audio conferences without downloading or installing software on a participant's computing device is disclosed. Streams of audio communication data from the participants in an audio conference are received at the server. An echo suppression application determines the first party that speaks by analyzing the streams to locate speech data, and assigns that party as the “owner” of the audio channel. The speech data is sent to the other participants in the conference. The application then determines whether newly received audio from the owner of the channel is new speech; if so, then the party remains the owner of the channel, and the new speech data is also sent to the other parties in the conference. The channel is surrendered if no new speech is received from the owner in a defined period, and the next party that speaks becomes the new owner of the channel. The other audio data from the participants is replaced by silence.

摘要翻译： 公开了一种用于在基于浏览器的在线音频会议中在服务器上执行回声抑制而不在参与者的计算设备上下载或安装软件的系统和方法。 来自音频会议的参与者的音频通信数据流在服务器处被接收。 回声抑制应用程序通过分析流来定位语音数据来确定说话的第一方，并将该方分配为音频频道的“所有者”。 语音数据被发送给会议的其他与会者。 然后，应用程序确定来自频道的所有者的新接收的音频是否是新的语音; 如果是，则该方仍然是频道的所有者，并且新的语音数据也被发送给会议的其他方。 如果在规定的时间内没有收到业主的新发言，则该频道被交出，而说话的下一方成为频道的新拥有者。 来自与会者的其他音频数据被沉默所取代。

公开(公告)号：US07969997B1

公开(公告)日：2011-06-28

申请号：US11592776

申请日：2006-11-03

申请人： Jeonghun Noh ,  Eric E. Setton ,  Bernd Girod

发明人： Jeonghun Noh ,  Eric E. Setton ,  Bernd Girod

IPC分类号： H04L12/28 ,  H04L12/56 ,  G06F15/16

CPC分类号： H04L47/2433 ,  H04L12/18 ,  H04L45/16 ,  H04L45/48 ,  H04L47/15 ,  H04L47/22 ,  H04L47/2416 ,  H04L65/80 ,  H04L67/108

摘要： Packet-based delivery of video content is facilitated using a peer-to-peer network. According to an example embodiment of the present invention, a packet-based video stream is passed over a peer-to-peer network, with the packets in the stream scheduled and delivered in accordance with a priority assigned to the packets; this priority is based upon a determined or estimated effect that the packet will have upon video quality at a recipient peer. In some applications, the packets are temporally spaced to mitigate congestion and/or distortion of video associated with congestion in the delivery of the packets.

摘要翻译： 使用点对点网络便于视频内容的基于分组的传送。 根据本发明的示例实施例，基于分组的视频流在对等网络上传递，流中的分组根据分配给分组的优先级被调度和传送; 该优先级基于在接收者对等体上视频质量的确定或估计的影响。 在一些应用中，分组在时间上间隔开以减轻在分组传递中与拥塞相关联的视频的拥塞和/或失真。

公开(公告)号：US20090164576A1

公开(公告)日：2009-06-25

申请号：US12334947

申请日：2008-12-15

申请人： Jeonghun Noh ,  Pierpaolo Baccichet ,  Bernd Girod

发明人： Jeonghun Noh ,  Pierpaolo Baccichet ,  Bernd Girod

IPC分类号： G06F15/16

CPC分类号： H04L67/104 ,  H04L65/4084 ,  H04L67/1046 ,  H04L67/1085 ,  H04N21/4331 ,  H04N21/4788 ,  H04N21/632

摘要： A variety of methods, systems, devices and configured storage devices are used in relation to peer-to-peer streaming system with a plurality of processing-circuit-peer nodes sharing streaming data by passing the streaming data from parent nodes to child nodes. According to one such system, computer-based nodes are configured and adapted to detect a departure of a first child peer node from the peer-to-peer streaming system. The first child peer node having been a child peer node of the parent peer node and the first child peer having provided data to one or more additional child peers. Responsive to the detected departure, a second child peer is selected to provide data to the one or more additional child peers. Data is provided to the second child peer to facilitate establishment of a connection between the selected child peer and the one or more additional child peers and the parent peer node.

摘要翻译： 多个方法，系统，设备和配置的存储设备被用于具有多个处理电路 - 对等节点的对等流传输系统，所述处理电路 - 对等节点通过将来自父节点的流数据传递到子节点来共享流数据。 根据一个这样的系统，基于计算机的节点被配置和适于检测第一子对等节点离开对等流传输系统的离开。 第一子对等节点已经是父对等节点的子对等节点，而第一子对等体已经向一个或多个另外的子对等体提供了数据。 响应于检测到的离开，选择第二子对等体以向一个或多个另外的子对等体提供数据。 将数据提供给第二子对等体以便于建立所选择的子对等体与一个或多个附加子对等体和父对等节点之间的连接。

公开(公告)号：US20090034858A1

公开(公告)日：2009-02-05

申请号：US12183991

申请日：2008-07-31

申请人： Markus H. Flierl ,  Bernd Girod

发明人： Markus H. Flierl ,  Bernd Girod

IPC分类号： G06K9/36

CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/523 ,  H04N19/597 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635

摘要： A variety of methods, devices, systems and arrangements are implemented for processing and coding of video images. According to one such implementation, a method is implemented for encoding a sequence of images. A plurality of orthogonal transforms is implemented on a set of N images, where N is greater than one. The images are linked by motion fields that include sets of respective portions of the images. In particular, the construction of a motion-compensated orthogonal transform is accomplished for the important case where at least one portion of any of the N images—or any part of this portion—is used more than once to motion-compensate other portions of the N images—or parts thereof.

摘要翻译： 实现各种方法，设备，系统和布置用于视频图像的处理和编码。 根据一种这样的实现，实现了对一系列图像进行编码的方法。 在一组N个图像上实现多个正交变换，其中N大于1。 图像由包括图像的相应部分的集合的运动场链接。 特别地，对于重要的情况，完成了运动补偿正交变换的构造，其中N个图像中的任何一个或该部分的任何部分的至少一部分被多次使用以运动补偿其中的部分 N图像或其部分。