Multi-pass video-encoding
    1.
    发明专利
    Multi-pass video-encoding 有权
    多通道视频编码

    公开(公告)号:JP2011151838A

    公开(公告)日:2011-08-04

    申请号:JP2011052098

    申请日:2011-03-09

    Abstract: PROBLEM TO BE SOLVED: To provide a multi-pass encoding method that encodes several images (e.g., several frames of a video sequence). SOLUTION: An encoding operation (110) that encodes images is iteratively performed. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images (132). During several different iterations of the encoding operation, the method uses several different nominal quantization parameters (125). The method stops its iterations (140) when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images). COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供对多个图像(例如,视频序列的几个帧)进行编码的多遍编码方法。 解决方案:迭代地执行编码图像的编码操作(110)。 编码操作基于标称量化参数,该方法用于计算图像的量化参数(132)。 在编码操作的几个不同迭代期间,该方法使用几个不同的标称量化参数(125)。 该方法在达到终止标准(例如,其识别图像的可接受编码)时停止其迭代(140)。 版权所有(C)2011,JPO&INPIT

    METHOD OF MULTI-PASS VIDEO ENCODING

    公开(公告)号:HK1101052A1

    公开(公告)日:2007-10-05

    申请号:HK07106057

    申请日:2007-06-07

    Applicant: APPLE INC

    Abstract: Some embodiments of the invention provide a multi-pass encoding method that encodes several images (e.g., several frames of a video sequence). The method iteratively performs an encoding operation that encodes these images (Figure 1, 110). The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images (132). During several different iterations of the encoding operation, the method uses several different nominal quantization parameters (125). The method stops its iterations (140) when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).

    COMPLEXITY-AWARE ENCODING
    3.
    发明申请
    COMPLEXITY-AWARE ENCODING 审中-公开
    复杂性认识编码

    公开(公告)号:WO2008033830A2

    公开(公告)日:2008-03-20

    申请号:PCT/US2007078148

    申请日:2007-09-11

    CPC classification number: H04N19/154 H04N19/156 H04N19/164

    Abstract: Techniques for encoding data based at least in part upon an awareness of the decoding complexity of the encoded data and the ability of a target decoder to decode the encoded data are disclosed. In some embodiments, a set of data is encoded based at least in part upon a state of a target decoder to which the encoded set of data is to be provided. In some embodiments, a set of data is encoded based at least in part upon the states of multiple decoders to which the encoded set of data is to be provided.

    Abstract translation: 至少部分基于对编码数据的解码复杂度的认识以及目标解码器对编码数据进行解码的能力来编码数据的技术被公开。 在一些实施例中,至少部分基于待提供编码数据集的目标解码器的状态来编码一组数据。 在一些实施例中,至少部分地基于要向其提供编码的数据集的多个解码器的状态来编码一组数据。

    A FRAMEWORK FOR SUPPORTING MULTI-DEVICE COLLABORATION
    4.
    发明申请
    A FRAMEWORK FOR SUPPORTING MULTI-DEVICE COLLABORATION 审中-公开
    支持多设备协作的框架

    公开(公告)号:WO2010107703A8

    公开(公告)日:2011-10-27

    申请号:PCT/US2010027334

    申请日:2010-03-15

    Abstract: A framework for providing multi-device collaboration is described herein. In one embodiment, a method for providing multi-device collaboration between first and second devices can include transferring an initializing function call to create a session object. The function call specifies a mode of the session object, a service type, and a service name. The session object can include functions to discover the second device, connect with the second device, and provide data transport between the connected first and second devices. The service name can include a truncated name, a unique identification, and a state of service of a software application associated with the first device. The method can include detecting a network and advertising the service type and the service name via the network. The service type and service name can be advertised prior to establishing the connection between the first and second devices.

    Abstract translation: 本文描述了用于提供多设备协作的框架。 在一个实施例中,用于在第一和第二设备之间提供多设备协作的方法可以包括传送初始化函数调用以创建会话对象。 函数调用指定会话对象的模式,服务类型和服务名称。 会话对象可以包括发现第二设备的功能,与第二设备连接,以及在连接的第一和第二设备之间提供数据传输。 服务名称可以包括与第一设备相关联的软件应用程序的截断名称,唯一标识和服务状态。 该方法可以包括检测网络并通过网络广告服务类型和服务名称。 可以在建立第一和第二设备之间的连接之前通告服务类型和服务名称。

    A FRAMEWORK FOR SUPPORTING MULTI-DEVICE COLLABORATION
    5.
    发明申请
    A FRAMEWORK FOR SUPPORTING MULTI-DEVICE COLLABORATION 审中-公开
    支持多设备协作的框架

    公开(公告)号:WO2010107703A2

    公开(公告)日:2010-09-23

    申请号:PCT/US2010027334

    申请日:2010-03-15

    Abstract: A framework for providing multi-device collaboration is described herein. In one embodiment, a method for providing multi-device collaboration between first and second devices can include transferring an initializing function call to create a session object. The function call specifies a mode of the session object, a service type, and a service name. The session object can include functions to discover the second device, connect with the second device, and provide data transport between the connected first and second devices. The service name can include a truncated name, a unique identification, and a state of service of a software application associated with the first device. The method can include detecting a network and advertising the service type and the service name via the network. The service type and service name can be advertised prior to establishing the connection between the first and second devices.

    Abstract translation: 本文描述了用于提供多设备协作的框架。 在一个实施例中,用于在第一和第二设备之间提供多设备协作的方法可以包括传送初始化函数调用以创建会话对象。 函数调用指定会话对象的模式,服务类型和服务名称。 会话对象可以包括发现第二设备的功能,与第二设备连接,以及在连接的第一和第二设备之间提供数据传输。 服务名称可以包括与第一设备相关联的软件应用程序的截断名称,唯一标识和服务状态。 该方法可以包括检测网络并通过网络广告服务类型和服务名称。 可以在建立第一和第二设备之间的连接之前通告服务类型和服务名称。

    HYBRID SCALABLE CODING
    6.
    发明申请
    HYBRID SCALABLE CODING 审中-公开
    混合可扩展编码

    公开(公告)号:WO2008092076A3

    公开(公告)日:2008-10-16

    申请号:PCT/US2008052044

    申请日:2008-01-25

    Abstract: Systems, apparatuses and methods whereby coded bitstreams are delivered to downstream end-user devices having various performance capabilities. A head-end encoder/video store generates a primary coded bitstream and metadata for delivery to an intermediate re-encoding system. The re-encoding system recodes the primary coded bitstream to generate secondary coded bitstreams based on coding parameters in the metadata. Each secondary coded bitstream is matched to a conformance point of a downstream end-user device. Coding parameters for each conformance point can be derived from the head-end encoder encoding original source video to generate the secondary coded bitstreams and extracting information from the coding process/results. The metadata can then can be communicated as part of the primary coded bitstream (e.g., as SEI) or can be communicated separately. As a result, the complexity of the secondary coded bitstream is appropriately scaled to match the capabilities of the downstream end-user device to which it is delivered.

    Abstract translation: 其中编码比特流被传送到具有各种性能能力的下游终端用户设备的系统,设备和方法。 头端编码器/视频存储器产生主编码比特流和元数据以传送到中间重编码系统。 重编码系统基于元数据中的编码参数来重新编码主编码比特流以生成辅助编码比特流。 每个辅助编码比特流与下游终端用户设备的一致性点匹配。 可以从编码原始源视频的前端编码器导出每个一致性点的编码参数,以生成辅助编码比特流并从编码处理/结果提取信息。 然后可以将元数据作为主编码比特流的一部分(例如,作为SEI)传送或者可以单独通信。 结果,二次编码比特流的复杂度被适当地缩放以匹配其被传递到的下游最终用户设备的能力。

    MULTI-PARTICIPANT CONFERENCING
    7.
    发明公开
    MULTI-PARTICIPANT CONFERENCING 有权
    KONFERENZ MIT MEHREREN TEILNEHMERN

    公开(公告)号:EP1875769A4

    公开(公告)日:2009-11-11

    申请号:EP06751923

    申请日:2006-04-27

    Applicant: APPLE INC

    Abstract: Some embodiments provide an architecture for establishing a multi-participant conference. This architecture has one participant's computer in the conference act as a central content distributor for the conference. The central distributor receives data (e.g., video and/or audio streams) from the computer of each other participant, and distributes the received data to the computers of all participants. In some embodiments, the central distributor receives A/V data from the computers of the other participants. From such received data, the central distributor of some embodiments generates composite data (e.g., composite image data and/or composite audio data) that the central distributor distributes back to the participants. The central distributor in some embodiments can implement a heterogeneous audio/video conference. In such a conference, different participants can participate in the conference differently. For instance, different participants might use different audio or video codecs. Moreover, in some embodiments, one participant might participate in only the audio aspect of the conference, while another participant might participate in both audio and video aspects of the conference.

    Abstract translation: 一些实施例提供了用于建立多参与者会议的架构。 该架构在会议中有一名与会者的电脑作为会议的中央内容分发商。 中央分配器从每个其他参与者的计算机接收数据(例如,视频和/或音频流),并将所接收的数据分发给所有参与者的计算机。 在一些实施例中,中央分配器从其他参与者的计算机接收A / V数据。 从这样接收的数据,一些实施例的中央分配器生成中央分配器分发给参与者的复合数据(例如,合成图像数据和/或复合音频数据)。 在一些实施例中,中央分配器可以实现异构音频/视频会议。 在这样的会议上,不同的参与者可以不同地参加会议。 例如,不同的参与者可能会使用不同的音频或视频编解码器。 此外,在一些实施例中,一个参与者可以仅参与会议的音频方面,而另一参与者可以参与会议的音频和视频方面。

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