公开(公告)号：US06501794B1

公开(公告)日：2002-12-31

申请号：US09575896

申请日：2000-05-22

申请人： Ruoyu Roy Wang ,  Hong-Jiang Zhang ,  Ya-Qin Zhang

发明人： Ruoyu Roy Wang ,  Hong-Jiang Zhang ,  Ya-Qin Zhang

IPC分类号： H04N736

CPC分类号： H04N19/90 ,  H04N19/17 ,  H04N19/48 ,  H04N19/86

摘要： A method comprising receiving media data in a compressed, digital domain, analyzing motion vectors associated with the received media content while in the compressed digital domain and identifying one or more objects in the received media data based, at least in part, on the motion vector analysis.

摘要翻译： 一种方法，包括在压缩的数字域中接收媒体数据，在压缩数字域中分析与所接收的媒体内容相关联的运动矢量，并且至少部分地基于运动矢量识别所接收的媒体数据中的一个或多个对象 分析。

公开(公告)号：US09626064B2

公开(公告)日：2017-04-18

申请号：US12628784

申请日：2009-12-01

申请人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

发明人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

IPC分类号： G06F3/048 ,  G06F3/0481 ,  G06Q10/10

CPC分类号： G06F3/1423 ,  G06F3/0481 ,  G06F3/04842 ,  G06F2203/04803 ,  G06Q10/10

摘要： Multiple schemes and techniques for facilitating presentations with an interactive application are described. For example, an interactive application provides a console view overlay for integrating multiple productivity applications into a graphical user interface (GUI) window. An interactive application can also share a selected display portion of the console view overlay with other interactive applications. As another example, presenters and other audience members can draw on the selected display portion being shared, and the drawn graphics are synchronously displayed by the other interactive applications. Interactive applications, as directed by their users, can join various member groups and specific presentations thereof. Moreover, a user may share content in accordance with membership grouping.

公开(公告)号：US08005138B2

公开(公告)日：2011-08-23

申请号：US11280095

申请日：2005-11-16

申请人： Feng Wu ,  Shipeng Li ,  Xiaoyan Sun ,  Ya-Qin Zhang

发明人： Feng Wu ,  Shipeng Li ,  Xiaoyan Sun ,  Ya-Qin Zhang

IPC分类号： H04N7/12 ,  H04B1/66

CPC分类号： G06T9/00 ,  H04N21/234327 ,  H04N21/2402 ,  H04N21/2662

摘要： A seamless bitstream switching schema is presented. The schema takes advantage of both the high coding efficiency of non-scalable bitstreams and the flexibility of scalable bitstreams. Small bandwidth fluctuations are accommodated by the scalability of the bitstreams, while large bandwidth fluctuations are tolerated by switching among scalable bitstreams. This seamless bitstream switching schema significantly improves the efficiency of scalable video coding over a broad range of bit rates.

摘要翻译： 提出了一种无缝比特流切换模式。 该模式利用了非可分级比特流的高编码效率和可扩展比特流的灵活性。 通过比特流的可扩展性来适应小的带宽波动，而通过在可缩放比特流之间切换来允许大的带宽波动。 这种无缝比特流切换架构显着提高了可扩展视频编码在广泛比特率下的效率。

公开(公告)号：US20100077319A1

公开(公告)日：2010-03-25

申请号：US12628784

申请日：2009-12-01

申请人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

发明人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

IPC分类号： G06F3/01

CPC分类号： G06F3/1423 ,  G06F3/0481 ,  G06F3/04842 ,  G06F2203/04803 ,  G06Q10/10

摘要： Multiple schemes and techniques for facilitating presentations with an interactive application are described. For example, an interactive application provides a console view overlay for integrating multiple productivity applications into a graphical user interface (GUI) window. An interactive application can also share a selected display portion of the console view overlay with other interactive applications. As another example, presenters and other audience members can draw on the selected display portion being shared, and the drawn graphics are synchronously displayed by the other interactive applications. Interactive applications, as directed by their users, can join various member groups and specific presentations thereof. Moreover, a user may share content in accordance with membership grouping.

摘要翻译： 描述了用于促进与交互应用的呈现的多种方案和技术。 例如，交互式应用程序提供了一个控制台视图覆盖，用于将多个生产力应用程序集成到图形用户界面（GUI）窗口中。 交互式应用程序还可以与其他交互式应用程序共享控制台视图覆盖的选定显示部分。 作为另一示例，演示者和其他观众成员可以在所选择的显示部分上进行共享，并且绘制的图形被其他交互式应用程序同步显示。 按照用户的指示，交互式应用程序可以加入各种成员组及其具体演示。 此外，用户可以根据会员分组来共享内容。

公开(公告)号：US07684495B2

公开(公告)日：2010-03-23

申请号：US10977590

申请日：2004-10-29

申请人： Ya-Qin Zhang ,  Shipeng Li ,  Feng Wu ,  Rong Yan

发明人： Ya-Qin Zhang ,  Shipeng Li ,  Feng Wu ,  Rong Yan

IPC分类号： H04N7/18

CPC分类号： H04N19/29 ,  H04N19/34 ,  H04N19/68 ,  H04N19/89

摘要： A scalable layered video coding scheme that encodes video data frames into multiple layers, including a base layer of comparatively low quality video and multiple enhancement layers of increasingly higher quality video, adds error resilience to the enhancement layer. Unique resynchronization marks are inserted into the enhancement layer bitstream in headers associated with each video packet, headers associated with each bit plane, and headers associated with each video-of-plane (VOP) segment. Following transmission of the enhancement layer bitstream, the decoder tries to detect errors in the packets. Upon detection, the decoder seeks forward in the bitstream for the next known resynchronization mark. Once this mark is found, the decoder is able to begin decoding the next video packet. With the addition of many resynchronization marks within each frame, the decoder can recover very quickly and with minimal data loss in the event of a packet loss or channel error in the received enhancement layer bitstream. The video coding scheme also facilitates redundant encoding of header information from the higher-level VOP header down into lower level bit plane headers and video packet headers. Header extension codes are added to the bit plane and video packet headers to identify whether the redundant data is included.

公开(公告)号：US07305140B2

公开(公告)日：2007-12-04

申请号：US10625364

申请日：2003-07-23

申请人： Jun Xin ,  Shipeng Li ,  Ya-Qin Zhang

发明人： Jun Xin ,  Shipeng Li ,  Ya-Qin Zhang

IPC分类号： G06K9/38

CPC分类号： G06T9/008

摘要： An image distribution system has a source that encodes digital images and transmits them over an error-prone channel to a destination. The source has an image coder that processes the digital images using vector transformation followed by vector quantization. This produces groups of vectors and quantized values that are representative of the images. The image coder orders the vectors in the codebooks and assigns vector indexes to the vectors such that a bit error occurring at a less significant bit in a vector index results in less distortion than a bit error occurring at a more significant bit. Depending upon the format and the capabilities of the source and destination, the image coder may allocate different numbers of bits to different groups of vectors according to a bit allocation map for this allocation process. The source also has a UEP (Unequal Error Protection) coder that layers the vector indexes according to their significance. Two possible approaches include frequency-based UEP and bit-plane based UEP. The source transmits a bitstream that includes the image values, a bit allocation map, and the layered vector indexes. The destination receives the bitstream and recovers the vectors using the vector indexes and bit allocation map. The destination then reconstructs the image from the image values and the vectors.

摘要翻译： 图像分配系统具有对数字图像进行编码并将其通过易出错的信道发送到目的地的源。 源具有图像编码器，其使用向量变换处理数字图像，随后进行矢量量化。 这产生代表图像的矢量组和量化值。 图像编码器对码本中的向量进行排序，并向向量分配向量索引，使得在矢量索引中以较低有效位发生的位错误导致比在更高有效位处发生的位错误更少的失真。 根据源和目的地的格式和能力，图像编码器可以根据用于该分配处理的比特分配图来向不同的向量组分配不同数量的比特。 该源还具有UEP（不等错误保护）编码器，其根据其意义对向量索引进行分层。 两种可能的方法包括基于频率的UEP和基于位平面的UEP。 源发送包括图像值，比特分配图和分层向量索引的比特流。 目的地接收比特流并使用向量索引和比特分配映射来恢复向量。 目的地然后从图像值和向量重建图像。

公开(公告)号：US07093028B1

公开(公告)日：2006-08-15

申请号：US09464671

申请日：1999-12-15

申请人： Huai-Rong Shao ,  Ya-Qin Zhang

发明人： Huai-Rong Shao ,  Ya-Qin Zhang

IPC分类号： G06F15/173

CPC分类号： H04L65/607 ,  H04L29/06 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/326 ,  H04L47/50 ,  H04L47/521 ,  H04L47/564 ,  H04L47/6215

摘要： A scalable video transmission scheme is provided in which client interaction and video content itself are taken into consideration during transmission. Methods and arrangements are provided to prioritize/classify different types of information according to their importance and to packetize or otherwise arrange the prioritized information in a manner such that lower priority information may be dropped during transmission. Thus, when network congestion occurs or there is not enough network bandwidth to transmit all of the prioritized information about an object, some (e.g., lower priority) information may be dropped at the server or at an intermediate network node to reduce the bit rate. Thus, when the server transmits multiple video objects over a channel of limited bandwidth capacity, the bit rate allocated to each object can be adjusted according to several factors, such as, e.g., information importance and client interaction.

摘要翻译： 提供了可扩展的视频传输方案，其中在传输期间考虑客户端交互和视频内容本身。 提供了方法和装置，以根据其重要性对不同类型的信息进行优先排序/分类，并以优先级信息打包或以其他方式布置优先级信息，使得在传输期间可能丢弃较低优先级的信息。 因此，当发生网络拥塞或者没有足够的网络带宽来发送关于对象的所有优先化信息时，可能在服务器或中间网络节点处丢弃一些（例如，较低优先级）信息以降低比特率。 因此，当服务器通过有限带宽容量的信道发送多个视频对象时，可以根据诸如信息重要性和客户端交互的几个因素来调整分配给每个对象的比特率。

公开(公告)号：US20060156201A1

公开(公告)日：2006-07-13

申请号：US11277265

申请日：2006-03-23

申请人： Qian Zhang ,  Ya-Qin Zhang ,  Wenwu Zhu

发明人： Qian Zhang ,  Ya-Qin Zhang ,  Wenwu Zhu

IPC分类号： H03M13/00

CPC分类号： H04L47/822 ,  H04L47/15 ,  H04L47/193 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/28 ,  H04L47/70 ,  H04L47/762 ,  H04L47/801 ,  H04N7/173 ,  H04N21/234318 ,  H04N21/234354 ,  H04N21/2381 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/4381 ,  H04N21/44209 ,  H04N21/64322 ,  H04N21/6582

摘要： A resource allocation of multiple compressed AV streams delivered over the Internet is disclosed that achieves end-to-end optimal quality through a multimedia streaming TCP-friendly transport (MSTFP) protocol that adaptively estimates the network bandwidth while smoothing the sending rate. Resources allocated dynamically according to a media encoding distortion and network degradation algorithm. A scheme is also disclosed for dynamically estimating the available network bandwidth for streaming of objects, such as MPEG4 multiple video objects, in conjunction with the MSTFP protocol. The scheme can account for packet-loss rates to minimize end-to-end distortion for media delivery.

摘要翻译： 公开了通过互联网传送的多个压缩AV流的资源分配，其通过自适应地估计网络带宽同时平滑发送速率的多媒体流TCP协议传输（MSTFP）协议来实现端到端的最佳质量。 根据媒体编码失真和网络退化算法动态分配资源。 还公开了一种结合MSTFP协议来动态地估计诸如MPEG4多视频对象的对象流的可用网络带宽的方案。 该方案可以解决丢包率，以尽量减少媒体传输的端到端失真。

公开(公告)号：US07046672B2

公开(公告)日：2006-05-16

申请号：US09848848

申请日：2001-05-03

申请人： HongBin Liao ,  Qian Zhang ,  Wenwu Zhu ,  Ya-Qin Zhang

发明人： HongBin Liao ,  Qian Zhang ,  Wenwu Zhu ,  Ya-Qin Zhang

IPC分类号： H04L12/28

CPC分类号： H04L69/04 ,  H04L47/10 ,  H04L47/193 ,  H04L47/27 ,  H04L47/37 ,  H04L69/16 ,  H04L69/161 ,  H04L69/163 ,  H04L69/22 ,  H04L69/326

摘要： An implementation of a technology, described herein, for transmitting compressed network transport-layer-protocol headers in a speedy, efficient, inferentially synchronized, and robust manner. An implementation, described herein, models the transmission of compressed headers to the congestion procedure of the network transport-layer protocol (e.g., TCP's). Doing so, the sender of the compressed headers can infer whether the receiver correctly received them. Unlike the slow direct synchronization employed by conventional schemes, this implementation of the present claimed invention inferentially synchronizes by modeling after the congestion procedure of the network transport-layer protocol. This is inherently faster than direct synchronization. Since the implementation performs well over both noiseless and noisy links, it is particularly suited to use over wireless communications channels. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

公开(公告)号：US20060075348A1

公开(公告)日：2006-04-06

申请号：US10957037

申请日：2004-10-01

申请人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

发明人： Ying-Qing Xu ,  Heung-Yeung Shum ,  Ya-Qin Zhang ,  Barn-Wan Li ,  Bo Liu

IPC分类号： G06F17/00

CPC分类号： G06F3/1423 ,  G06F3/0481 ,  G06F3/04842 ,  G06F2203/04803 ,  G06Q10/10

摘要： Multiple schemes and techniques for facilitating presentations with an interactive application are described. For example, an interactive application provides a console view overlay for integrating multiple productivity applications into a graphical user interface (GUI) window. An interactive application can also share a selected display portion of the console view overlay with other interactive applications. As another example, presenters and other audience members can draw on the selected display portion being shared, and the drawn graphics are synchronously displayed by the other interactive applications. Interactive applications, as directed by their users, can join various member groups and specific presentations thereof. Moreover, a user may share content in accordance with membership grouping.