公开(公告)号：US6092107A

公开(公告)日：2000-07-18

申请号：US55934

申请日：1998-04-07

申请人： Alexandros Eleftheriadis ,  Yihan Fang ,  Hari Kalva ,  Atul Puri ,  Robert Lewis Schmidt

发明人： Alexandros Eleftheriadis ,  Yihan Fang ,  Hari Kalva ,  Atul Puri ,  Robert Lewis Schmidt

IPC分类号： G06T9/00 ,  H04H1/00 ,  H04H20/42 ,  H04H60/04 ,  H04L29/06 ,  H04N5/00 ,  H04N7/24 ,  H04N7/26 ,  H04N21/44 ,  H04N21/443 ,  H04N21/472 ,  H04N21/4728 ,  H04N21/8543 ,  H04N7/10 ,  H04H1/02

CPC分类号： H04N21/44012 ,  H04L29/06027 ,  H04L65/605 ,  H04L65/80 ,  H04N19/27 ,  H04N21/4431 ,  H04N21/4437 ,  H04N21/47205 ,  H04N21/47217 ,  H04N21/4728 ,  H04N21/8543 ,  H04H20/42

摘要： The invention provides a system and method allowing the adaptation of a nonadaptive system for playing/browsing coded audiovisual objects, such as the parametric system of MPEG-4. The system of the invention is referred to as the programmatic system, and incorporates adaptivity on top of the parametric system. The parametric system of MPEG-4 consists of a Systems Demultiplex (Demux) overseen by digital media integration framework (DMIF), scene graph and media decoders, buffers, compositer and renderer. Adaptations possible with the invention include interfaces in the categories of media decoding, user functionalities and authoring, thus allowing a number of enhanced functionalities in response to use input as well as graceful degradation in response to limited system resources. The invention includes a specification of an interfacing method in the form of an application programming interface (API). Hot object, directional, trick mode, transparency and other interfaces are specified.

摘要翻译： 本发明提供一种系统和方法，其允许适配播放/浏览编码的视听对象的非自适应系统，例如MPEG-4的参数系统。 本发明的系统被称为编程系统，并且在参数系统之上引入适应性。 MPEG-4的参数系统由数字媒体集成框架（DMIF），场景图和媒体解码器，缓冲区，合成器和渲染器监督的系统解复用（Demo）组成。 本发明可能的改进包括媒体解码，用户功能和创作类别中的接口，因此响应于有限的系统资源而允许响应于使用输入的许多增强的功能以及优雅的退化。 本发明包括以应用编程接口（API）形式的接口方法的规范。 指定热对象，方向性，技巧模式，透明度等接口。

公开(公告)号：US20110292161A1

公开(公告)日：2011-12-01

申请号：US13115960

申请日：2011-05-25

申请人： Ran Sharon ,  Roi Sasson ,  Jonathan Steer ,  Alexandros Eleftheriadis

发明人： Ran Sharon ,  Roi Sasson ,  Jonathan Steer ,  Alexandros Eleftheriadis

IPC分类号： H04N7/15

CPC分类号： H04N7/142 ,  H04N7/152 ,  H04N19/30 ,  H04N19/40 ,  H04N19/587 ,  H04N19/59 ,  H04N19/89 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/8451

摘要： Systems and methods for performing videoconferencing using endpoints with multiple monitors and multiple cameras are disclosed herein. These endpoints are comprised of, where each node is comprised of a control unit and one or more node units, each connected to at least one monitor, camera, speaker, or microphone. Video is encoded using scalable coding, and endpoints are connected to each other over a network using an SVCS. Algorithms are described for layout management, tagging of individual streams, and use of tags for dynamic and prioritized layout management.

摘要翻译： 本文公开了使用具有多个监视器和多个摄像机的端点执行视频会议的系统和方法。 这些端点包括，其中每个节点由控制单元和一个或多个节点单元组成，每个节点单元连接到至少一个监视器，照相机，扬声器或麦克风。 视频使用可伸缩编码进行编码，端点通过使用SVCS的网络彼此连接。 描述了用于布局管理，单个流的标记以及使用标签进行动态和优先级布局管理的算法。

公开(公告)号：US20070291837A1

公开(公告)日：2007-12-20

申请号：US11691621

申请日：2007-03-27

申请人： Alexandros Eleftheriadis

发明人： Alexandros Eleftheriadis

IPC分类号： H04N7/12

CPC分类号： H04N21/8451 ,  H04N19/30 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/4621 ,  H04N21/643

摘要： Systems and methods are provided for communicating timely information related to the scalability layer structure of signals received by decoders and other components in a video and/or audio communication system. For a communication system, which uses the Standard H.264 SVC coding format, standard SSEI messages are modified or supplemented to include the ability to signal scalability layer structure information and changes thereof. Recipients can use the signal scalability layer information to properly process or decode received signals.

摘要翻译： 提供了系统和方法，用于及时传达与解码器和视频和/或音频通信系统中的其他组件接收的信号的可伸缩性层结构相关的信息。 对于使用标准H.264 SVC编码格式的通信系统，标准SSEI消息被修改或补充，以包括信号可扩展性层结构信息及其变化的能力。 接收者可以使用信号可伸缩性层信息来正确处理或解码接收到的信号。

公开(公告)号：US07199836B1

公开(公告)日：2007-04-03

申请号：US09367433

申请日：1998-02-13

申请人： Alexandros Eleftheriadis ,  Hari Kalva

发明人： Alexandros Eleftheriadis ,  Hari Kalva

IPC分类号： H04N5/262

CPC分类号： H04N21/23412 ,  G11B2020/10759 ,  H04N21/234318 ,  H04N21/4307 ,  H04N21/4331 ,  H04N21/434 ,  H04N21/44004 ,  H04N21/44012

摘要： As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, insertion/deletion, grouping, and special effects. In the interest of ease of editing, AV objects and their composition information are transmitted or accessed on separate logical channels (LCs). Objects which have a lifetime in the decoder beyond their initial presentation time are cached for reuse until a selected expiration time. The system includes a de-multiplexer (1), a controller (2) which controls the operation of the AV terminal, input buffers (3), AV objects decoders (4), buffers (4′) for decoded data, a composer (5), a display (6), and an object cache (7).

摘要翻译： 作为要在基于对象的视频或视听（AV）终端处理的信息，面向对象的比特流包括对象，合成信息和场景分界信息。 这样的比特流结构允许在线编辑，例如 剪切和粘贴，插入/删除，分组和特殊效果。 为了便于编辑，AV对象及其合成信息在单独的逻辑信道（LC）上传输或访问。 在解码器中具有超过其初始呈现时间的寿命的对象被缓存以供重用，直到选定的到期时间为止。 该系统包括解复用器（1），控制AV终端的操作的控制器（2），输入缓冲器（3），AV对象解码器（4），解码数据的缓冲器（4'），作曲者 5），显示器（6）和对象缓存（7）。

公开(公告)号：US06081554A

公开(公告)日：2000-06-27

申请号：US166212

申请日：1998-10-02

申请人： Jae-Boom Lee ,  Alexandros Eleftheriadis

发明人： Jae-Boom Lee ,  Alexandros Eleftheriadis

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： G06T9/20 ,  H04N19/21

摘要： In a digital video compression system that includes both a real buffer of size B.sub.max, and a smaller virtual buffer of size B.sub.virtual, a method for controlling the generated bit rate of compressed video information to keep within the maximum buffer capacity is disclosed. The method includes the steps of (a) receiving blocks of digital information, (b) determining whether a current block can be compressed by one of one or more shortcuts and using the shortcut if possible; (c) if the current block cannot be compressed with any shortcut, determining whether the virtual buffer capacity will be exceeded if the current received block is compressed only by arithmetic coding and using only arithmetic coding if possible; (d) if the current block cannot be compressed with any shortcut and the virtual buffer capacity would be exceeded with only arithmetic coding, determining whether the virtual buffer capacity will be exceeded if the current block is compressed with both downsampling and arithmetic coding and using both downsampling and arithmetic coding if possible; and (e) if all else fails, compressing the current block with a default mode of compression even if the virtual buffer capacity is exceeded with such compression.

摘要翻译： 在包括大小为Bmax的实际缓冲器和尺寸为Bvirtual的较小虚拟缓冲器的数字视频压缩系统中，公开了一种用于控制压缩视频信息的生成比特率以保持在最大缓冲器容量内的方法。 该方法包括以下步骤：（a）接收数字信息块（b）确定当前块是否可以被一个或多个快捷方式中的一个压缩，并且如果可能的话使用快捷方式; （c）如果当前块不能用任何捷径压缩，则如果当前接收的块仅通过算术编码被压缩并且如果可能的话只使用算术编码，则确定是否将超过虚拟缓冲器容量; （d）如果当前块不能用任何快捷方式压缩，并且仅通过算术编码将超过虚拟缓冲区容量，则确定如果使用下采样和算术编码压缩当前块并使用两者，则确定是否将超过虚拟缓冲区容量 可能的下采样和算术编码; 和（e）如果所有其他的都失败，即使通过这种压缩超过虚拟缓冲区容量，也可以使用默认压缩模式来压缩当前块。

公开(公告)号：US6044397A

公开(公告)日：2000-03-28

申请号：US55929

申请日：1998-04-07

申请人： Alexandros Eleftheriadis ,  Yihan Fang ,  Atul Puri ,  Robert Lewis Schmidt

发明人： Alexandros Eleftheriadis ,  Yihan Fang ,  Atul Puri ,  Robert Lewis Schmidt

IPC分类号： H04N7/24 ,  H04N7/26 ,  H04N7/52 ,  H04N21/234 ,  H04N21/44 ,  H04N21/443 ,  H04N21/472 ,  H04N7/10 ,  H04H1/02

CPC分类号： H04N21/23412 ,  H04N19/25 ,  H04N19/27 ,  H04N21/44012 ,  H04N21/4431 ,  H04N21/47205 ,  H04N7/52

摘要： The invention provides a standardized interface facility for MPEG-4 authoring, bitstream manipulation, editing and interpretation, with associated tools and interfaces to, resulting in coded bitstreams which are easier to test, check and debug while conforming to the MPEG-4 standard. The specified interfaces can also facilitate graceful degradation in the face of decreased resources by allowing editing of bitstreams. The specified interfaces can also allow creation of decodable bitstreams in response to the user requests either directly or indirectly embedded in audiovisual applications, as well as future services. The invention specifies a bitstream input/output package in the Java programming language to facilitates bitstream encoding and decoding of audio-visual media objects, especially when coding uses the MPEG-4 standard. The invention separates fixed length and variable length coding, and allows flexible parsing which offers the potential of optimized implementation as needed to aid real-time or near real-time operation.

摘要翻译： 本发明提供用于MPEG-4创作，比特流操纵，编辑和解释以及相关联的工具和接口的标准接口设备，导致编码比特流，其在符合MPEG-4标准的同时更容易测试，检查和调试。 指定的接口还可以通过允许编辑比特流来促进资源减少的正常退化。 指定的接口还可以响应于直接或间接嵌入在视听应用中的用户请求以及将来的服务来创建可解码比特流。 本发明指定了Java编程语言中的比特流输入/输出包，以便于音视频媒体对象的比特流编码和解码，特别是当编码使用MPEG-4标准时。 本发明分离固定长度和可变长度编码，并允许灵活的解析，根据需要提供优化实现的潜力，以帮助实时或接近实时操作。

公开(公告)号：US08854552B2

公开(公告)日：2014-10-07

申请号：US13345208

申请日：2012-01-06

申请人： Alexandros Eleftheriadis ,  Hari Kalya

发明人： Alexandros Eleftheriadis ,  Hari Kalya

IPC分类号： H04N5/265 ,  H04N5/262 ,  H04N7/52 ,  H04N21/43 ,  H04N21/2343 ,  H04N21/835 ,  H04N21/44 ,  H04N5/44 ,  G11B27/034 ,  H04N21/254 ,  G10L19/002 ,  H04N21/234 ,  H04N21/433

CPC分类号： G11B27/032 ,  G06T1/60 ,  G10L19/002 ,  G10L19/008 ,  G11B27/034 ,  H04N5/265 ,  H04N5/4401 ,  H04N7/52 ,  H04N21/23412 ,  H04N21/234318 ,  H04N21/2541 ,  H04N21/4307 ,  H04N21/4331 ,  H04N21/44012 ,  H04N21/835

摘要： As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, insertion/deletion, grouping, and special effects. In the interest of ease of editing, AV objects and their composition information are transmitted or accessed on separate logical channels (LCs). Objects which have a lifetime in the decoder beyond their initial presentation time are cached for reuse until a selected expiration time.

摘要翻译： 作为要在基于对象的视频或视听（AV）终端处理的信息，面向对象的比特流包括对象，合成信息和场景分界信息。 这样的比特流结构允许在线编辑，例如 剪切和粘贴，插入/删除，分组和特殊效果。 为了便于编辑，AV对象及其合成信息在单独的逻辑信道（LC）上传输或访问。 在解码器中具有超过其初始呈现时间的寿命的对象被缓存以供重用，直到选定的到期时间为止。

公开(公告)号：US08761263B2

公开(公告)日：2014-06-24

申请号：US11691621

申请日：2007-03-27

申请人： Alexandros Eleftheriadis

发明人： Alexandros Eleftheriadis

IPC分类号： H04N7/12 ,  H04N7/167

CPC分类号： H04N21/8451 ,  H04N19/30 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/4621 ,  H04N21/643

摘要： Systems and methods are provided for communicating timely information related to the scalability layer structure of signals received by decoders and other components in a video and/or audio communication system. For a communication system, which uses the Standard H.264 SVC coding format, standard SSEI messages are modified or supplemented to include the ability to signal scalability layer structure information and changes thereof. Recipients can use the signal scalability layer information to properly process or decode received signals.

摘要翻译： 提供了系统和方法，用于及时传达与解码器和视频和/或音频通信系统中的其他组件接收的信号的可伸缩性层结构相关的信息。 对于使用标准H.264 SVC编码格式的通信系统，标准SSEI消息被修改或补充，以包括信号可扩展性层结构信息及其变化的能力。 接收者可以使用信号可伸缩性层信息来正确处理或解码接收到的信号。

公开(公告)号：US08594202B2

公开(公告)日：2013-11-26

申请号：US11871612

申请日：2007-10-12

申请人： Alexandros Eleftheriadis

发明人： Alexandros Eleftheriadis

IPC分类号： H04N11/02

CPC分类号： H04N19/00533 ,  H04N19/31 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2662

摘要： Media communication systems and methods for media encoded using scalable coding with temporal scalability are provided. Transmitting endpoints include switching information in their transmitted media to indicate if temporal level switching at a decoder can occur at any frame of the transmitted encoded media.

摘要翻译： 提供了使用具有时间可伸缩性的可缩放编码的媒体编码媒体通信系统和方法。 发送端点包括其传送的媒体中的切换信息，以指示解码器的时间级别切换是否可以发生在发送的编码媒体的任何帧处。

公开(公告)号：US08462856B2

公开(公告)日：2013-06-11

申请号：US11971769

申请日：2008-01-09

申请人： Alexandros Eleftheriadis ,  Stephen Cipolli ,  Jonathan Lennox

发明人： Alexandros Eleftheriadis ,  Stephen Cipolli ,  Jonathan Lennox

IPC分类号： H04N7/26

CPC分类号： H04N19/00854 ,  H04N19/166 ,  H04N19/31 ,  H04N19/33 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/65 ,  H04N19/70 ,  H04N19/89 ,  H04N21/234327 ,  H04N21/6125 ,  H04N21/6375 ,  H04N21/6377 ,  H04N21/658

摘要： Systems and methods for error resilient transmission and for random access in video communication systems are provided. The video communication systems are based on single-layer, scalable video, or simulcast video coding with temporal scalability, which may be used in video communication systems. A set of video frames or pictures in a video signal transmission is designated for reliable or guaranteed delivery to receivers using secure or high reliability links, or by retransmission techniques. The reliably-delivered video frames are used as reference pictures for resynchronization of receivers with the transmitted video signal after error incidence and for random access.

摘要翻译： 提供了用于错误弹性传输和视频通信系统中的随机接入的系统和方法。 视频通信系统基于可以在视频通信系统中使用的具有时间可扩展性的单层，可扩展视频或同时播放视频编码。 视频信号传输中的一组视频帧或图像被指定用于使用安全或高可靠性链路可靠或有保证地传送到接收机，或通过重传技术。 可靠传送的视频帧被用作用于在发生错误发生之后接收机与发送的视频信号重新同步并用于随机存取的参考图像。