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    VIDEO CODING TECHNIQUES FOR HIGH QUALITY CODING OF LOW MOTION CONTENT
    12.
    发明申请
    VIDEO CODING TECHNIQUES FOR HIGH QUALITY CODING OF LOW MOTION CONTENT 审中-公开
    用于低运动内容高品质编码的视频编码技术

    公开(公告)号：US20160360230A1

    公开(公告)日：2016-12-08

    申请号：US14730975

    申请日：2015-06-04

    Applicant: Apple Inc.

    Inventor： Peikang Song ,  Jae Hoon Kim ,  Xiaosong Zhou ,  Chris Y. Chung ,  Hsi-Jung Wu ,  Dazhong Zhang

    IPC: H04N19/53 ,  H04N19/31 ,  H04N19/137 ,  H04N19/85 ,  H04N19/70 ,  H04N19/117

    Abstract: Techniques for coding video data are described that maintain high precision coding for low motion video content. Such techniques include determining whether a source video sequence to be coded has low motion content. When the source video sequence contains low motion content, the video sequence may be coded as a plurality of coded frames using a chain of temporal prediction references among the coded frames. Thus, a single frame in the source video sequence is coded as a plurality of frames. Because the coded frames each represent identical content, the quality of coding should improve across the plurality of frames. Optionally, the disclosed techniques may increase the resolution at which video is coded to improve precision and coding quality.

    Abstract translation: 描述了用于对视频数据进行编码的技术，其维持低运动视频内容的高精度编码。 这样的技术包括确定要编码的源视频序列是否具有低运动内容。 当源视频序列包含低运动内容时，视频序列可以使用编码帧中的时间预测参考链来编码为多个编码帧。 因此，源视频序列中的单个帧被编码为多个帧。 由于编码帧各自表示相同的内容，所以编码的质量应该跨越多个帧而改善。 可选地，所公开的技术可以增加视频被编码的分辨率，以提高精度和编码质量。

    TECHNIQUES TO OVERCOME COMMUNICATION LAG BETWEEN TERMINALS PERFORMING VIDEO MIRRORING AND ANNOTATION OPERATIONS
    13.
    发明申请
    TECHNIQUES TO OVERCOME COMMUNICATION LAG BETWEEN TERMINALS PERFORMING VIDEO MIRRORING AND ANNOTATION OPERATIONS 有权
    实现视频镜像和报警操作的终端之间通过通信标签的技术

    公开(公告)号：US20160353057A1

    公开(公告)日：2016-12-01

    申请号：US14727471

    申请日：2015-06-01

    Applicant: Apple Inc.

    Inventor： Chris Y. Chung ,  Dazhong Zhang ,  Hsi-Jung Wu ,  Xiaosong Zhou

    IPC: H04N7/14 ,  H04L29/06 ,  G06F17/24 ,  H04N7/15

    CPC classification number: H04N7/147 ,  G06F17/241 ,  H04L65/403 ,  H04L65/601 ,  H04N5/147 ,  H04N7/155 ,  H04N21/242 ,  H04N21/4307

    Abstract: Techniques are disclosed for overcoming communication lag between interactive operations among devices in a streaming session. According to the techniques, a first device streaming video content to a second device and an annotation is entered to a first frame being displayed at the second device, which is communicated back to the first device. Responsive to a communication that identifies the annotation, a first device may identify an element of video content from the first frame to which the annotation applies and determine whether the identified element is present in a second frame of video content currently displayed at the first terminal. If so, the first device may display the annotation with the second frame in a location where the identified element is present. If not, the first device may display the annotation via an alternate technique.

    Abstract translation: 公开了用于克服流传输会话中的设备之间的交互操作之间的通信滞后的技术。 根据该技术，将视频内容流传输到第二设备和注释的第一设备被输入到被显示在第二设备上的第一帧，该第一帧被传送回到第一设备。 响应于识别注释的通信，第一设备可以从应用注释的第一帧识别视频内容的元素，并且确定所识别的元素是否存在于当前在第一终端显示的视频内容的第二帧中。 如果是，则第一设备可以在所存在的元素的位置中显示具有第二帧的注释。 如果不是，则第一设备可以经由替代技术来显示注释。

    TECHNIQUES FOR ADAPTIVE VIDEO STREAMING
    14.
    发明申请
    TECHNIQUES FOR ADAPTIVE VIDEO STREAMING 审中-公开
    适应性视频流的技术

    公开(公告)号：US20160073106A1

    公开(公告)日：2016-03-10

    申请号：US14703366

    申请日：2015-05-04

    Applicant: Apple Inc.

    Inventor： Yeping Su ,  Hsi-Jung Wu ,  Ke Zhang ,  Chris Y. Chung ,  Xiaosong Zhou

    IPC: H04N19/10

    CPC classification number: H04N19/10 ,  H04N21/234363 ,  H04N21/23439 ,  H04N21/23805 ,  H04N21/8456 ,  H04N21/8543

    Abstract: In a video coding system, a common video sequence is coded multiple times to yield respective instances of coded video data. Each instance may be coded according to a set coding parameters derived from a target bit rate of a respective tier of service. Each tier may be coded according to a constraint that limits a maximum coding rate of the tier to be less than a target bit rate of another predetermined tier of service. Having been coded according to the constraint facilitates dynamic switching among tiers by a requesting client device processing resources or communication bandwidth changes. Improved coding systems to switch among different coding streams may increase quality of video streamed while minimizing transmission and storage size of such content.

    Abstract translation: 在视频编码系统中，公共视频序列被多次编码以产生编码视频数据的各个实例。 每个实例可以根据从相应服务等级的目标比特率导出的集合编码参数进行编码。 每个层可以根据将该层的最大编码率限制为小于另一预定服务层的目标比特率的约束进行编码。 已经根据约束进行编码有助于请求客户端设备处理资源或通信带宽变化的层之间的动态切换。 改进的在不同编码流之间切换的编码系统可以提高视频流的质量，同时最小化这些内容的传输和存储大小。

    DYNAMIC RANGE ADAPTIVE VIDEO CODING SYSTEM
    16.
    发明申请
    DYNAMIC RANGE ADAPTIVE VIDEO CODING SYSTEM 审中-公开
    动态范围自适应视频编码系统

    公开(公告)号：US20150350641A1

    公开(公告)日：2015-12-03

    申请号：US14636839

    申请日：2015-03-03

    Applicant: Apple Inc.

    Inventor： Xiaosong Zhou ,  Jiefu Zhai ,  Yeping Su ,  Chris Y. Chung ,  Hsi-Jung Wu

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/119 ,  H04N19/167

    CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/13 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/18 ,  H04N19/85 ,  H04N19/98

    Abstract: A video coding/decoding system codes data efficiently even when input video data exhibits changes in dynamic range. The system may map pixel values of the first frame from a dynamic range specific to the input image data to a second dynamic range that applies universally to a plurality of frames that have different dynamic ranges defined for them. The system may code the mapped pixel values to reduce bandwidth of the mapped frame data, and thereafter transmit the coded image data to a channel.

    Abstract translation: 视频编码/解码系统即使在输入视频数据表现出动态范围的变化时，也能有效地对数据进行编 该系统可将来自特定于输入图像数据的动态范围的第一帧的像素值映射到通常适用于为它们定义的不同动态范围的多个帧的第二动态范围。 系统可以对映射的像素值进行编码以减少映射的帧数据的带宽，然后将编码的图像数据发送到信道。

    COHERENCE GROUPS: REGION DESCRIPTORS FOR LOW BIT RATE ENCODING
    17.
    发明申请
    COHERENCE GROUPS: REGION DESCRIPTORS FOR LOW BIT RATE ENCODING 有权
    协调组：用于低比特率编码的区域描述符

    公开(公告)号：US20140362919A1

    公开(公告)日：2014-12-11

    申请号：US13913169

    申请日：2013-06-07

    Applicant: Apple Inc.

    Inventor： Xiaosong Zhou ,  Hsi-Jung Wu ,  Chris Y. Chung ,  Albert E. Keinath ,  David R. Conrad ,  Yunfei Zheng ,  Dazhong Zhang ,  Jae Hoon Kim

    IPC: H04N19/583

    CPC classification number: H04N19/51 ,  H04N19/119 ,  H04N19/136 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/23 ,  H04N19/46

    Abstract: The invention is directed to an efficient way for encoding and decoding video. Embodiments include identifying different coding units that share a similar characteristic. The characteristic can be, for example: quantization values, modes, block sizes, color space, motion vectors, depth, facial and non-facial regions, and filter values. An encoder may then group the units together as a coherence group. An encoder may similarly create a table or other data structure of the coding units. An encoder may then extract the commonly repeating characteristic or attribute from the coding units. The encoder may transmit the coherence groups along with the data structure, and other coding units which were not part of a coherence group. The decoder may receive the data, and utilize the shared characteristic by storing locally in cache, for faster repeated decoding, and decode the coherence group together.

    Abstract translation: 本发明涉及用于对视频进行编码和解码的有效方式。 实施例包括识别共享相似特征的不同编码单元。 特征可以是例如：量化值，模式，块大小，颜色空间，运动矢量，深度，面部和非面部区域以及滤波器值。 然后，编码器可以将这些单元组合在一起作为一致性组。 编码器可以类似地创建编码单元的表或其他数据结构。 然后，编码器可以从编码单元中提取常见的重复特性或属性。 编码器可以连同数据结构以及不是相干组的一部分的其他编码单元一起发送相干组。 解码器可以接收数据，并通过将本地存储在高速缓存中来利用共享特性，以便更快的重复解码，并将相干组一起解码。

    ADVANCED CODING TECHNIQUES
    18.
    发明申请
    ADVANCED CODING TECHNIQUES 审中-公开
    先进的编码技术

    公开(公告)号：US20130235928A1

    公开(公告)日：2013-09-12

    申请号：US13652311

    申请日：2012-10-15

    Applicant: APPLE, INC.

    Inventor： Chris Y. Chung ,  Hao Pan ,  Jiefu Zhai ,  Yeping Su ,  Douglas Scott Price ,  Hsi-Jung Wu ,  Xiaosong Zhou

    IPC: H04N7/32 ,  H04N7/26

    CPC classification number: H04N19/577 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/149 ,  H04N19/15 ,  H04N19/154 ,  H04N19/156 ,  H04N19/172 ,  H04N19/192 ,  H04N19/46 ,  H04N19/58

    Abstract: Embodiments of the present invention provide techniques for efficiently coding/decoding video data during circumstances when constraints are imposed on the video data. A frame from a video sequence may be marked as a delayed decoder refresh frame. Frames successive to the delayed decoder refresh frame in coding order may predictively coded without reference to frames preceding the delayed decoder refresh frame in coding order. The distance between the delayed decoder refresh frame and the successive frames may exceed a distance threshold. Frames successive to a current frame in decoding order may be decoded without reference to frames preceding the current frame in decoding order. The distance between the current frame and the successive frames may exceed a distance threshold.

    Abstract translation: 本发明的实施例提供了在对视频数据施加约束的情况下有效地对视频数据进行编码/解码的技术。 来自视频序列的帧可被标记为延迟解码器刷新帧。 以编码顺序连续到延迟解码器刷新帧的帧可以以编码顺序预先编码而不参考延迟解码器刷新帧之前的帧。 延迟解码器刷新帧和连续帧之间的距离可以超过距离阈值。 可以解码顺序对当前帧连续的帧进行解码，而不参考当前帧之前的帧。 当前帧与连续帧之间的距离可能会超过距离阈值。

    Instant Video Communication Connections
    19.
    发明申请
    Instant Video Communication Connections 有权

    公开(公告)号：US20220286644A1

    公开(公告)日：2022-09-08

    申请号：US17826116

    申请日：2022-05-26

    Applicant: Apple Inc.

    Inventor： Xiaosong Zhou ,  Hsi-Jung Wu ,  Chris Y. Chung ,  James Normile ,  Joe S. Abuan ,  Hyeonkuk Jeong ,  Yan Yang ,  Gobind Johar ,  Thomas Christopher Jansen

    IPC: H04N7/14 ,  H04L65/1069 ,  H04N7/15 ,  H04L51/10 ,  H04L51/04

    Abstract: Computing devices may implement instant video communication connections for video communications. Connection information for mobile computing devices may be maintained. A request to initiate an instant video communication may be received, and if authorized, the connection information for the particular recipient mobile computing device may be accessed. Video communication data may then be sent to the recipient mobile computing device according to the connection information so that the video communication data may be displayed at the recipient device as it is received. New connection information for different mobile computing devices may be added, or updates to existing connection information may also be performed. Connection information for some mobile computing devices may be removed.

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