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公开(公告)号：US08811475B2
公开(公告)日：2014-08-19
申请号：US13437931
申请日：2012-04-03
申请人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
发明人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
CPC分类号： H04N19/00193 , H04N19/00 , H04N19/152 , H04N19/194
摘要： A method of encoding a sequence of video images is described. The method receives the sequence of video images. The method iteratively examines different encoding solutions for the sequence of video images to identify an encoding solution that optimizes image quality while meeting a target bit rate and satisfying a set of constraints regarding flow of encoded data through an input buffer of a hypothetical reference decoder for decoding the encoded video sequence. The iterative examining includes, for each encoding solution, determining whether the hypothetical reference decoder underflows while processing the encoding solution for any set of images within the video sequence.
摘要翻译： 描述了对视频图像序列进行编码的方法。 该方法接收视频图像序列。 该方法迭代地检查视频图像序列的不同编码解决方案，以识别优化图像质量同时满足目标比特率并且通过用于解码的假设参考解码器的输入缓冲器满足编码数据流的一组约束的编码解决方案 编码视频序列。 对于每个编码解决方案，迭代检查包括在处理视频序列内的任何图像集合的编码解决方案的同时确定假想参考解码器是否下溢。
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公开(公告)号：US08406293B2
公开(公告)日：2013-03-26
申请号：US11118616
申请日：2005-04-28
申请人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
发明人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
IPC分类号： H04N7/12
CPC分类号： H04N19/00193 , H04N19/00 , H04N19/152 , H04N19/194
摘要： A novel multi-pass encoding method that encodes several images (e.g., several frames of a video sequence) is described. The method iteratively performs an encoding operation that encodes these images. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameter for the images. During several different iterations of the encoding operation, the method uses several different nominal quantization parameters. The method stops its iterations when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).
摘要翻译： 描述了对几个图像（例如，视频序列的几个帧）进行编码的新型多遍编码方法。 该方法迭代地执行编码这些图像的编码操作。 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。 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。 该方法在达到终止标准（例如，它识别图像的可接受编码）时停止迭代。
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公开(公告)号：US20120250761A1
公开(公告)日：2012-10-04
申请号：US13437931
申请日：2012-04-03
申请人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
发明人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Geoffry Haskell , Jim Normile
IPC分类号： H04N7/26
CPC分类号： H04N19/00193 , H04N19/00 , H04N19/152 , H04N19/194
摘要： 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. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images. During several different iterations of the encoding operation, the method uses several different nominal quantization parameters. The method stops its iterations when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).
摘要翻译： 本发明的一些实施例提供了对多个图像（例如，视频序列的几个帧）进行编码的多遍编码方法。 该方法迭代地执行编码这些图像的编码操作。 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。 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。 该方法在达到终止标准（例如，它识别图像的可接受编码）时停止迭代。
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公开(公告)号：US20060013298A1
公开(公告)日：2006-01-19
申请号：US11118616
申请日：2005-04-28
申请人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Haskell , Jim Normile
发明人： Xin Tong , Hsi Jung Wu , Thomas Pun , Adriana Dumitras , Barin Haskell , Jim Normile
CPC分类号： H04N19/00193 , H04N19/00 , H04N19/152 , H04N19/194
摘要： Some embodiments of the invention provide a multi-pass encoding method that encodes several images (eg., several frames of a video sequence). The method iteratively performs an encoding operation that encodes these images. The encoding operation is based on a nominal quantization parameter, which the method uses to compute quantization parameters for the images. During several different iterations of the encoding operation, the method uses several different nominal quantization parameters. The method stops its iterations when it reaches a terminating criterion (e.g., it identifies an acceptable encoding of the images).
摘要翻译： 本发明的一些实施例提供了对多个图像（例如，视频序列的几个帧）进行编码的多遍编码方法。 该方法迭代地执行编码这些图像的编码操作。 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。 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。 该方法在达到终止标准（例如，它识别图像的可接受编码）时停止迭代。
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公开(公告)号：US08830092B2
公开(公告)日：2014-09-09
申请号：US13156610
申请日：2011-06-09
申请人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
发明人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
IPC分类号： H03M7/00
CPC分类号： H04N19/154 , H04N19/156 , H04N19/164
摘要： 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.
摘要翻译： 公开了至少部分地基于编码数据的解码复杂度的意识和目标解码器解码编码数据的能力对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集合的目标解码器的状态对数据集进行编码。 在一些实施例中，一组数据至少部分地基于要提供编码数据集的多个解码器的状态进行编码。
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公开(公告)号：US20110234430A1
公开(公告)日：2011-09-29
申请号：US13156610
申请日：2011-06-09
申请人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
发明人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
IPC分类号： H03M7/34
CPC分类号： H04N19/154 , H04N19/156 , H04N19/164
摘要： 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.
摘要翻译： 公开了至少部分地基于编码数据的解码复杂度的意识和目标解码器解码编码数据的能力对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集合的目标解码器的状态对数据集进行编码。 在一些实施例中，一组数据至少部分地基于要提供编码数据集的多个解码器的状态进行编码。
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公开(公告)号：US07456760B2
公开(公告)日：2008-11-25
申请号：US11519843
申请日：2006-09-11
申请人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
发明人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
IPC分类号： H03M7/00
CPC分类号： H04N19/154 , H04N19/156 , H04N19/164
摘要： 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.
摘要翻译： 公开了至少部分地基于编码数据的解码复杂度的意识和目标解码器解码编码数据的能力对数据进行编码的技术。 在一些实施例中，至少部分地基于要提供编码数据集合的目标解码器的状态对数据集进行编码。 在一些实施例中，一组数据至少部分地基于要提供编码数据集的多个解码器的状态进行编码。
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公开(公告)号：US20080062018A1
公开(公告)日：2008-03-13
申请号：US11519843
申请日：2006-09-11
申请人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
发明人： Jim Normile , Thomas Pun , Xiaojin Shi , Xin Tong , Hsi-Jung Wu
IPC分类号： H03M7/00
CPC分类号： H04N19/154 , H04N19/156 , H04N19/164
摘要： 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.
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公开(公告)号：US08594293B2
公开(公告)日：2013-11-26
申请号：US13543733
申请日：2012-07-06
申请人： Hyeonkuk Jeong , Joe Abuan , Jim Normile , Ryan Salsbury , Berkat Shing Tung
发明人： Hyeonkuk Jeong , Joe Abuan , Jim Normile , Ryan Salsbury , Berkat Shing Tung
CPC分类号： H04N7/152 , H04Q3/0045 , H04Q2213/13093 , H04Q2213/1324 , H04Q2213/13332
摘要： 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.
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公开(公告)号：US08249237B2
公开(公告)日：2012-08-21
申请号：US13099331
申请日：2011-05-02
申请人： Hyeonkuk Jeong , Joe Abuan , Jim Normile , Ryan Salsbury , Berkat Shing Tung
发明人： Hyeonkuk Jeong , Joe Abuan , Jim Normile , Ryan Salsbury , Berkat Shing Tung
CPC分类号： H04Q3/0045 , H04N7/15 , H04Q2213/13093 , H04Q2213/1324
摘要： 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.
摘要翻译： 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回参与者的复合数据（例如，合成图像数据和/或复合音频数据）。 一些实施例中的中央分配器可以实现异构音频/视频会议。 在这样的会议中，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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