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    Two-step quantization and coding method and apparatus
    1.
    发明授权
    Two-step quantization and coding method and apparatus 有权
    两步量化和编码方法及装置

    公开(公告)号：US09510019B2

    公开(公告)日：2016-11-29

    申请号：US13570492

    申请日：2012-08-09

    申请人： Qunshan Gu ,  Yaowu Xu

    发明人： Qunshan Gu ,  Yaowu Xu

    IPC分类号： H04N7/12 ,  H04N19/85 ,  H04N19/176 ,  H04N19/30 ,  H04N19/134 ,  H04N19/12 ,  H04N19/182

    CPC分类号： H04N19/85 ,  H04N19/12 ,  H04N19/134 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30

    摘要： Encoding and decoding a video image having a plurality of frames using a two-step quantization and coding process are disclosed. A block of a frame are encoded by identifying pixels having certain spatial characteristics, forming a second block from the block while replacing the identified pixels with a single pixel value, such as an average of the remaining original pixels. The second block is encoded, such as by transformation and quantization, and placed into a bitstream. The second block is decoded and subtracted from the original block to generate a difference block. The difference block is encoded, such as by quantization, and is placed in the bitstream. At a decoder, both blocks are decoded and combined to reconstruct the original block.

    摘要翻译： 公开了使用两步量化和编码处理对具有多个帧的视频图像进行编码和解码。 通过识别具有某些空间特性的像素来对帧的块进行编码，从块中形成第二块，同时用诸如剩余原始像素的平均值的单个像素值替换所识别的像素。 第二块被编码，例如通过变换和量化，并被放入比特流中。 第二块被解码并从原始块中减去以产生差分块。 差分块被编码，例如通过量化，并被放置在比特流中。 在解码器处，两个块被解码和组合以重构原始块。

    Selective prediction signal filtering
    2.
    发明授权
    Selective prediction signal filtering 有权
    选择性预测信号滤波

    公开(公告)号：US09344729B1

    公开(公告)日：2016-05-17

    申请号：US13546402

    申请日：2012-07-11

    申请人： Adrian W Grange ,  James Bankoski ,  Paul G Wilkins ,  Yaowu Xu

    发明人： Adrian W Grange ,  James Bankoski ,  Paul G Wilkins ,  Yaowu Xu

    IPC分类号： H04N19/117 ,  H04N19/80 ,  H04N19/103

    CPC分类号： H04N19/117 ,  H04N19/103 ,  H04N19/147 ,  H04N19/80 ,  H04N19/82

    摘要： Disclosed herein are methods and apparatuses for selective prediction signal filtering. One aspect of the disclosed implementations is a method for encoding a frame of a video stream including determining a first performance measurement for a first set of prediction samples identified for a group of pixels using a first prediction mode, generating a filtered set of prediction samples by applying a filter to a second set of prediction samples, wherein at least one of the filtered set of prediction samples or the second set of prediction samples are identified using a second prediction mode, determining a second performance measurement for the filtered set of prediction samples, generating, using a processor, a residual based on the filtered set of prediction samples and the group of pixels if the second performance measurement exceeds the first performance measurement, and encoding the frame using the residual.

    摘要翻译： 这里公开了用于选择性预测信号滤波的方法和装置。 所公开的实现的一个方面是用于对视频流的帧进行编码的方法，包括使用第一预测模式确定针对一组像素所识别的第一组预测样本的第一性能测量， 将滤波器应用于第二组预测样本，其中使用第二预测模式来识别滤波的预测样本集合或第二组预测样本中的至少一个，确定经滤波的预测样本组的第二性能测量， 如果第二性能测量超过第一性能测量，则使用处理器生成基于滤波的预测样本组和像素组的残差，以及使用残差对帧进行编码。

    Video compression method
    4.
    发明授权
    Video compression method 有权
    视频压缩方式

    公开(公告)号：US08824553B2

    公开(公告)日：2014-09-02

    申请号：US10713807

    申请日：2003-11-14

    申请人： Eric Ameres ,  James Bankoski ,  Scott Lavarnway ,  Yaowu Xu ,  Dan Miller ,  Adrian Grange ,  Paul Wilkins

    发明人： Eric Ameres ,  James Bankoski ,  Scott Lavarnway ,  Yaowu Xu ,  Dan Miller ,  Adrian Grange ,  Paul Wilkins

    IPC分类号： H04N11/02 ,  H04N7/36 ,  H04N7/26

    CPC分类号： H04N19/117 ,  H04N19/114 ,  H04N19/129 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/152 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/177 ,  H04N19/52 ,  H04N19/523

    摘要： A method of compressing video data having at least one frame having at least one block and each block having an array of pixels is provided. The method transforms the pixels of each block into coefficients and creates an optimal transmission order of the coefficients. The method also optimizes the speed of processing compressed video data by partitioning the data bitstream and coding each partition independently. The method also predicts fractional pixel motion by selecting an interpolation method for each given plurality or block of pixels depending upon at least one metric related to each given block and varies the method from block to block. The method also enhances error recovery for a current frame using a frame prior to the frame immediately before the current frame as the only reference frame for lessening quality loss during data transmission. Enhanced motion vector coding is also provided.

    摘要翻译： 提供了一种压缩具有至少一个具有至少一个块的帧的视频数据的方法，并且每个块具有像素阵列。 该方法将每个块的像素变换为系数，并创建系数的最佳传输顺序。 该方法还通过分割数据比特流并独立编码每个分区来优化处理压缩视频数据的速度。 该方法还通过根据与每个给定块相关的至少一个度量来选择每个给定的多个或多个像素块的内插方法来预测分数像素运动，并且将该方法从块改变为块。 该方法还使用紧邻当前帧之前的帧之前的帧将当前帧的误差恢复提高为用于减少数据传输期间的质量损失的唯一参考帧。 还提供增强的运动矢量编码。

    Video encoding and serving architecture
    5.
    发明授权
    Video encoding and serving architecture 有权
    视频编码和服务架构

    公开(公告)号：US08719888B1

    公开(公告)日：2014-05-06

    申请号：US13652900

    申请日：2012-10-16

    申请人： Yaowu Xu ,  James Bankoski ,  Paul Gordon Wilkins

    发明人： Yaowu Xu ,  James Bankoski ,  Paul Gordon Wilkins

    IPC分类号： H04N7/173 ,  G06F15/16

    CPC分类号： H04N21/6379 ,  G06F17/30846 ,  H04L65/607 ,  H04N21/23116 ,  H04N21/234327 ,  H04N21/2393 ,  H04N21/4622 ,  H04N21/4782 ,  H04N21/4828 ,  H04N21/8549

    摘要： Techniques for delivering content, such as videos, over a network are described. A core server and an edge server are provided. The core server has local storage. The edge server has local storage. A set of video frames is partitioned into a first group and a second group. Video frames in the first group are encoded into a scalable encoded stream. The scalable encoded stream is sent to the local storage at the edge server. The second group of video frames is encoded into a set of supplemental encoded streams using the scalable encoded stream as a reference. The supplemental encoded streams are encoded such that the bit rate and/or resolution of any two supplemental encoded streams is different. The set of supplemental encoded streams is stored in the storage of the core server.

    摘要翻译： 描述了通过网络传送内容（如视频）的技术。 提供了核心服务器和边缘服务器。 核心服务器具有本地存储。 边缘服务器具有本地存储。 一组视频帧被划分成第一组和第二组。 第一组中的视频帧被编码成可缩放的编码流。 可扩展编码流被发送到边缘服务器的本地存储。 使用可伸缩编码流作为参考，将第二组视频帧编码成一组补充编码流。 对补充编码流进行编码，使得任何两个补充编码流的比特率和/或分辨率不同。 该组补充编码流存储在核心服务器的存储器中。

    TWO-STEP QUANTIZATION AND CODING METHOD AND APPARATUS
    6.
    发明申请
    TWO-STEP QUANTIZATION AND CODING METHOD AND APPARATUS 有权
    两步数量化和编码方法与装置

    公开(公告)号：US20140044164A1

    公开(公告)日：2014-02-13

    申请号：US13570492

    申请日：2012-08-09

    申请人： Qunshan Gu ,  Yaowu Xu

    发明人： Qunshan Gu ,  Yaowu Xu

    IPC分类号： H04N7/12

    CPC分类号： H04N19/85 ,  H04N19/12 ,  H04N19/134 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30

    摘要： Encoding and decoding a video image having a plurality of frames using a two-step quantization and coding process are disclosed. A block of a frame are encoded by identifying pixels having certain spatial characteristics, forming a second block from the block while replacing the identified pixels with a single pixel value, such as an average of the remaining original pixels. The second block is encoded, such as by transformation and quantization, and placed into a bitstream. The second block is decoded and subtracted from the original block to generate a difference block. The difference block is encoded, such as by quantization, and is placed in the bitstream. At a decoder, both blocks are decoded and combined to reconstruct the original block.

    摘要翻译： 公开了使用两步量化和编码处理对具有多个帧的视频图像进行编码和解码。 通过识别具有某些空间特性的像素来对帧的块进行编码，从块中形成第二块，同时用诸如剩余原始像素的平均值的单个像素值替换所识别的像素。 第二块被编码，例如通过变换和量化，并被放入比特流中。 第二块被解码并从原始块中减去以产生差分块。 差分块被编码，例如通过量化，并被放置在比特流中。 在解码器处，两个块被解码和组合以重构原始块。

    System and Method for Decoding using Parallel Processing
    8.
    发明申请
    System and Method for Decoding using Parallel Processing 有权
    使用并行处理解码的系统和方法

    公开(公告)号：US20120307892A1

    公开(公告)日：2012-12-06

    申请号：US13565364

    申请日：2012-08-02

    申请人： Yaowu Xu ,  Paul Wilkins ,  James Bankoski

    发明人： Yaowu Xu ,  Paul Wilkins ,  James Bankoski

    IPC分类号： H04N7/26 ,  H04N7/32

    CPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/436 ,  H04N19/44 ,  H04N19/51 ,  H04N19/593 ,  H04N19/82

    摘要： A method for decoding a stream of encoded video data is disclosed. The video stream includes partitions that have been compressed using lossless encoding. Each partition includes rows that have also been encoded using intra-frame or inter-frame encoding, for example. During the decoding process, two or more of the partitions are entropy decoded on two or more processors in parallel, except that partitions containing adjacent rows in the frame are decoded with an offset so that at least a portion of the output of the entropy decoding of one partition can be used as input in the entropy and intra/inter-frame decoding of the other.

    摘要翻译： 公开了一种对编码视频数据流进行解码的方法。 视频流包括使用无损编码进行压缩的分区。 每个分区包括例如也使用帧内或帧间编码进行编码的行。 在解码过程中，两个或更多个分区在两个或多个处理器上并行地进行熵解码，除了在帧中包含相邻行的分区以偏移量进行解码，使得熵解码的输出的至少一部分 一个分区可以用作另一个分区的熵和帧内/帧间解码中的输入。

    System and method for video coding using adaptive segmentation
    9.
    发明授权
    System and method for video coding using adaptive segmentation 有权
    使用自适应分割的视频编码系统和方法

    公开(公告)号：US08325796B2

    公开(公告)日：2012-12-04

    申请号：US12329177

    申请日：2008-12-05

    申请人： Paul Wilkins ,  James Bankoski ,  Yaowu Xu

    发明人： Paul Wilkins ,  James Bankoski ,  Yaowu Xu

    IPC分类号： H04N11/02

    CPC分类号： H04N19/10 ,  H04N19/117 ,  H04N19/124 ,  H04N19/17 ,  H04N19/176 ,  H04N19/196 ,  H04N19/21 ,  H04N19/463 ,  H04N19/523 ,  H04N19/61 ,  H04N19/82

    摘要： A method for decoding compressed video information is disclosed. The video information can include a plurality of frames each having a plurality of blocks. The method includes reading from the video information a segment map that associates blocks in the frame with four segment identifiers. Each segment identifier is associated with one or more segment parameters, such as quantization parameters, loop filter type, loop filter strength and sub-pixel interpolation filter. The blocks in each segment are then decoded using the associated segment parameters. Segment parameters can persist to following frames unless overwritten by a subsequent frame. A frame can also include a bit suppressing segmentation, in which case default parameters are used for all blocks in the frame.

    摘要翻译： 公开了解压缩视频信息的方法。 视频信息可以包括多个帧，每个帧具有多个块。 该方法包括从视频信息中读取将帧中的块与四个段标识符相关联的段映射。 每个段标识符与一个或多个段参数相关联，例如量化参数，环路滤波器类型，环路滤波器强度和子像素内插滤波器。 然后使用相关联的段参数对每个段中的块进行解码。 段参数可以持续到后续帧，除非被后续帧覆盖。 帧还可以包括位抑制分段，在这种情况下，默认参数用于帧中的所有块。