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1. 发明申请

US20100033622A1 Multiple description coding video transmission using de-interlacing mechanisms 审中-公开
标题翻译：使用去隔行扫描机制的多描述编码视频传输
公开(公告)号：US20100033622A1
公开(公告)日：2010-02-11
申请号：US10594022
申请日：2005-03-23
申请人： Erwin Bellers , Mihaela Van Der Schaar
发明人： Erwin Bellers , Mihaela Van Der Schaar
IPC分类号： H04N7/01 , H04N7/26
CPC分类号： H04N19/39 , H04N19/174
摘要： Multiple Description Coding (MDC) has been shown to be an effective technique for robust transmission of video data over networks including wireless systems and the Internet. A method is provided where the video signal (20) is interlaced and split into multiple streams before being encoded and transmitted over separate transmission channels (308, 310). At a receiver (320) side, de-interlacing algorithms may be applied and the streams are regrouped to form the original video signal (20). The use of interlacing and deinterlacing techniques improve the robustness of video transmission without having to modify existing equipment.
摘要翻译：多描述编码（MDC）已经被证明是用于通过包括无线系统和因特网在内的网络强大地传输视频数据的有效技术。提供了一种方法，其中视频信号（20）在被编码之前被隔行扫描并分离成多个流，并通过单独的传输信道（308,310）传输。在接收机（320）侧，可以应用去隔行算法，并且重新分组流以形成原始视频信号（20）。使用交错和去隔行扫描技术可以提高视频传输的鲁棒性，而无需修改现有的设备。

2. 发明申请

US20060256867A1 Content-adaptive multiple description motion compensation for improved efficiency and error resilience 审中-公开
标题翻译：内容自适应多描述运动补偿，以提高效率和错误弹性
公开(公告)号：US20060256867A1
公开(公告)日：2006-11-16
申请号：US10526861
申请日：2003-08-29
申请人： Deepak Turaga , Mihaela Van Der Schaar
发明人： Deepak Turaga , Mihaela Van Der Schaar
IPC分类号： H04N11/02
CPC分类号： H04N19/577 , H04N19/39 , H04N19/65 , H04N19/89
摘要： A multiple description coding method is applied to video, and optimized to preclude transmission to the decoder of mismatch correction information that applies to portions of a frame outside a region of interest. Additional bit efficiency is realized by selectively updating, based on video content, the weighting of prediction frames motion compensated from corresponding frames used in estimating a current frame. Frequency of update is adaptively determined based on the realized increased accuracy of prediction and concomitant residual image bit savings as compared, in tradeoff, with the need to more frequently transmit the updated weights to the receiver.
摘要翻译：将多重描述编码方法应用于视频，并且被优化以排除适用于感兴趣区域外的帧的部分的不匹配校正信息的解码器的传输。通过基于视频内容选择性地更新从用于估计当前帧的相应帧中补偿的预测帧的加权来实现额外的比特效率。相比之下，基于实现的增加的预测精度和伴随的残留图像比特节省来自适应地确定更新频率，在折衷中，需要更频繁地将更新的权重发送到接收机。

3. 发明授权

US07136532B2 FGS decoder based on quality estimated at the decoder 有权
标题翻译： FGS解码器基于在解码器估计的质量
公开(公告)号：US07136532B2
公开(公告)日：2006-11-14
申请号：US10183760
申请日：2002-06-27
申请人： Mihaela Van Der Schaar
发明人： Mihaela Van Der Schaar
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N21/4621 , H04N19/29 , H04N19/34 , H04N21/234327 , H04N21/25808 , H04N21/2662 , H04N21/440227 , H04N21/6373 , H04N21/6377 , H04N21/658
摘要： A method for decoding a stream of data includes the steps of: identifying a relationship (100) between quality of a decoded image and a bit rate for decoding the image; selecting a desired quality (110) of images to be decoded from the stream of data; determining a bit rate (112) corresponding to the desired quality using the relationship; and decoding a minimum number of bit-planes corresponding to the determined bit rate from the stream of data.
摘要翻译：解码数据流的方法包括以下步骤：识别解码图像的质量与用于解码图像的位速率之间的关系（100）; 从数据流中选择要解码的图像的期望质量（110）; 使用所述关系确定对应于期望质量的比特率（112）; 以及从所述数据流中解码与所确定的位速率相对应的最小数量的位平面。

4. 发明申请

US20060251167A1 Multi-track hinting for receiver-driven streaming system 审中-公开
标题翻译：接收机驱动流系统的多轨提示
公开(公告)号：US20060251167A1
公开(公告)日：2006-11-09
申请号：US10539698
申请日：2003-12-16
申请人： Mihaela Van Der Schaar , Qiong Li
发明人： Mihaela Van Der Schaar , Qiong Li
IPC分类号： H04N7/12
CPC分类号： H04L65/4084 , H04L29/06 , H04L29/06027 , H04L65/80 , H04N21/23439 , H04N21/44029 , H04N21/44209 , H04N21/4621 , H04N21/6125 , H04N21/6581
摘要： A receiver-driven streaming method is provided. The method includes receiving an original coded video stream from a transmitter 102 at a receiver 104. An available bit rate is measured at the receiver 104. A request for a different coded video stream and a switching stream is sent from the receiver 104 to the transmitter 102 based on the available bit rate. The requested switching stream is received from the transmitter 102 at the receiver 104. The requested coded video stream is received from the transmitter 102 at the receiver 104. According to one embodiment, switching streams 132a-132f are stored separately from coded video streams 130a-130c, and each switching stream 132a-132f and coded video stream 130a-130c is stored in a separate track from each other. In this way, switching streams 132a-132f maybe generated offline. Also, the receiver 104 controls the streams provided by the transmitter 102 by requesting specific switching streams 132a-132f and coded video streams 130a-103c.
摘要翻译：提供了一种接收机驱动的流传输方法。该方法包括在接收机104处从发射机102接收原始编码视频流。在接收机104处测量可用比特率。对于不同编码视频流和切换流的请求从接收机104发送到发射机 102基于可用比特率。所请求的切换流在接收机104处从发射机102接收。所请求的编码视频流在接收机104处从发射机102接收。根据一个实施例，切换流132a-132f与编码视频流 130a-130c，并且每个切换流132a-132f和编码视频流130a-130c彼此存储在单独的轨道中。以这种方式，切换流132a-132f可以离线生成。而且，接收机104通过请求特定的切换流132a-132f和编码的视频流130a-103c来控制由发射机102提供的流。

5. 发明申请

US20060203001A1 Clipping of media data transmitted in a network 审中-公开
标题翻译：剪切在网络中传输的媒体数据
公开(公告)号：US20060203001A1
公开(公告)日：2006-09-14
申请号：US10539360
申请日：2003-11-18
申请人： Petrus Van Der Stok , Mihaela Van Der Schaar , Christian Hentschel
发明人： Petrus Van Der Stok , Mihaela Van Der Schaar , Christian Hentschel
IPC分类号： G09G5/37
CPC分类号： G09G5/14 , H04N5/44591 , H04N21/4316 , H04N21/436 , H04N21/43615 , H04N21/4622
摘要： The invention discloses an apparatus and a method for receiving multiple media data streams, which are displayed in separate windows of a multi-window display. Clipping information relating to an area of one of the windows being covered by the other window is transmitted to a source device providing the media data being covered when displayed. As a viewer may not see the covered area, the media data relating to the covered area is not needed by the destination device. Therefore, the source device based on the clipping information does not transmit any media data needed for processing of the covered area to the destination device, which does not have to process all media data relating to the covered area.
摘要翻译：本发明公开了一种用于接收多媒体数据流的装置和方法，它们显示在多窗口显示器的分开的窗口中。将与另一个窗口所覆盖的其中一个窗口的区域有关的信息传送到提供显示时被覆盖的媒体数据的源设备。当观众看不到被覆盖的区域时，目的地设备不需要与覆盖区域有关的媒体数据。因此，基于限幅信息的源设备不会将覆盖区域的处理所需的任何媒体数据发送到目的地设备，目的地设备不必处理与被覆盖区域相关的所有媒体数据。

6. 发明申请

US20060165129A1 System and method for adapting transmission rate of a multimedia streaming server using a "virtual clock" 审中-公开
标题翻译：使用“虚拟时钟”来适应多媒体流服务器的传输速率的系统和方法
公开(公告)号：US20060165129A1
公开(公告)日：2006-07-27
申请号：US10538108
申请日：2003-12-10
申请人： Qiong Li , Mihaela Van Der Schaar
发明人： Qiong Li , Mihaela Van Der Schaar
IPC分类号： H04J3/06
CPC分类号： H04L47/2416 , H04L1/0014 , H04L1/0015 , H04L29/06027 , H04L47/10 , H04L47/25 , H04L47/28 , H04L65/608 , H04L65/80 , H04N21/26216 , H04N21/2662 , H04N21/6125 , H04N21/6437 , H04N21/64769
摘要： A so-called “Virtual Clock” with varying frequency is provided for used by a multimedia streaming server to adapt its transmission rate dynamically to changing network conditions. The “Virtual Clock” system and method of the present invention compensates for a potential limitation of the Internet Real-time Transmission Protocol (RTP), that stamps every packet it delivers with a timestamp and expects the server using this timestamp to schedule the transmission of this particular packet accordingly. Consequently, the transmission rate is pre-determined by the encoded multimedia content when RPT is used. Using the “Virtual Clock” of the present invention, the streaming server has a mechanism to overcome this RTP limitation and can conduct transmission rate adaptation in a way that can balance the bandwidth requirement of the content with the bandwidth availability of the network.
摘要翻译：提供了具有不同频率的所谓“虚拟时钟”，供多媒体流服务器使用，以便将其传输速率动态地适应不断变化的网络条件。本发明的“虚拟时钟”系统和方法补偿因特网实时传输协议（RTP）的潜在限制，因为它以每个分组的形式对其进行标记，并且期望使用该时间戳的服务器调度传输相应的这个特定的包。因此，当使用RPT时，传输速率由编码的多媒体内容预先确定。使用本发明的“虚拟时钟”，流服务器具有克服该RTP限制的机制，并且可以以能够平衡内容的带宽需求与网络的带宽可用性的方式进行传输速率适配。

7. 发明授权

US07042944B2 Single-loop motion-compensation fine granular scalability 有权
公开(公告)号：US07042944B2
公开(公告)日：2006-05-09
申请号：US09887756
申请日：2001-06-21
申请人： Mihaela van der Schaar , Hayder Radha
发明人： Mihaela van der Schaar , Hayder Radha
IPC分类号： H04N7/00
CPC分类号： H04N19/34 , H04N19/31 , H04N19/61
摘要： A video coding technique having motion compensation for bi-directional predicted frames (B-frames) and predicted frames (P-frames). The video coding technique involves a single-loop prediction-based base layer which includes base layer B- and/or P-frames that are generated from “extended” or “enhanced” base layer reference frames during base layer coding.

8. 发明申请

US20060093031A1 Method and apparatus for performing multiple description motion compensation using hybrid predictive codes 审中-公开
标题翻译：使用混合预测码执行多描述运动补偿的方法和装置
公开(公告)号：US20060093031A1
公开(公告)日：2006-05-04
申请号：US10523434
申请日：2003-07-24
申请人： Mihaela Van Der Schaar , Deepak Turaga
发明人： Mihaela Van Der Schaar , Deepak Turaga
IPC分类号： H04N11/04 , H04N11/02 , H04N7/12 , H04B1/66
CPC分类号： H04N19/61
摘要： An improved multiple description coding (MDC) method and apparatus is provided which extends multi-description motion compensation (MDMC) by allowing for multi-frame prediction and is not limited to only I and P frames. Further, the coding method of the invention extends MDMC for use with any conventional predictive codec, such as, for example, MPEG2/4 and H.26L. The improved MDC permits the use of any conventional predictive coder for use as a top and bottom predictive encoder. Further, the top and bottom predictive coders can advantageously include B-frames and multiple prediction motion compensation. Still further, any of the top, middle and bottom predictive encoders can be a scalable encoder (e.g., FGS-like or data-partitioning like where the motion vectors (MVs) are sent first, temporal scalability etc.).
摘要翻译：提供了一种改进的多描述编码（MDC）方法和装置，其通过允许多帧预测来扩展多描述运动补偿（MDMC），并且不限于仅I帧和P帧。此外，本发明的编码方法扩展了MDMC以用于任何常规的预测编解码器，例如MPEG2 / 4和H.26L。改进的MDC允许使用任何常规的预测编码器用作顶部和底部预测编码器。此外，顶部和底部预测编码器可以有利地包括B帧和多个预测运动补偿。另外，顶部，中间和底部预测编码器中的任何一个可以是可伸缩的编码器（例如，像运动矢量（MV）首先被发送，时间可伸缩性等那样的类似FGS或数据分区）。

9. 发明申请

US20060069793A1 System and method using a circular buffer for detecting packet loss in streaming applications 审中-公开
标题翻译：使用循环缓冲区的系统和方法，用于检测流应用中的丢包
公开(公告)号：US20060069793A1
公开(公告)日：2006-03-30
申请号：US10538100
申请日：2003-12-10
申请人： Qiong Li , Mihaela Van Der Schaar
发明人： Qiong Li , Mihaela Van Der Schaar
IPC分类号： G06F15/16
CPC分类号： H04N1/48 , G01J3/46 , G01J3/465 , G01J3/501 , G01J3/51 , G01J2003/467 , H04L65/80 , H04L69/10 , H04L69/28 , H04L69/40
摘要： A circular buffer, i.e., a chain of buffers forming a circle, is provided for managing packet loss detection in Internet streaming. The detection latency is determined by the size of the buffer chain, which can be dynamically adapted to network conditions and application requirements. The present invention can achieve reasonable detection accuracy.
摘要翻译：提供循环缓冲器，即形成圆的缓冲器链，用于管理因特网流中的分组丢失检测。检测延迟由缓冲链的大小确定，缓冲链可以动态地适应网络条件和应用需求。本发明可以实现合理的检测精度。

10. 发明授权

US07020193B2 Preferred transmission/streaming order of fine-granular scalability 有权
公开(公告)号：US07020193B2
公开(公告)日：2006-03-28
申请号：US09962280
申请日：2001-09-24
申请人： Mihaela Van Der Schaar
发明人： Mihaela Van Der Schaar
IPC分类号： H04B1/66 , H04N11/02 , H04N11/04 , H04N7/12
CPC分类号： H04N21/2662 , H04N19/115 , H04N19/147 , H04N19/154 , H04N19/159 , H04N19/172 , H04N19/29 , H04N19/31 , H04N19/34 , H04N19/36 , H04N19/37 , H04N19/60 , H04N19/61 , H04N21/234327 , H04N21/2402
摘要： A method for streaming enhancement layer video frame data on a variable bandwidth network involves coding original uncoded video data with a non-scalable codec to generate I and P base layer frames; generating residual temporal B frames and SNR I and P frames from the original uncoded video data and the base layer frames; coding the temporal and SNR frames with a scalable codec; determining an available bandwidth of the variable bandwidth network; transmitting at least portions of the scalable coded temporal frames when the available bandwidth is a first bandwidth ranging between a minimum bit-rate allocated for transmitting only base layer frames and a predetermined bit-rate which is below a maximum bit-rate of the network; and additionally transmitting remaining portions of the scalable coded temporal frames and at least portions of the scalable coded SNR frames when the available bandwidth is a second bandwidth extending between the predetermined bit-rate and the maximum bit-rate of the network.

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