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    JOINT MOTION VECTOR CODING
    2.
    发明公开
    JOINT MOTION VECTOR CODING 审中-公开

    公开(公告)号：US20240195978A1

    公开(公告)日：2024-06-13

    申请号：US18065220

    申请日：2022-12-13

    Applicant: Apple Inc.

    Inventor： Yeqing WU ,  Yunfei Zheng ,  Alexandros Tourapis ,  Yixin Du ,  Alican Nalci ,  Hilmi E. Egilmez ,  Guoxin Jin ,  Jun Xin ,  Hsi-Jung Wu

    IPC: H04N19/137 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176

    CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176

    Abstract: The present disclosure describes techniques for efficient coding of motion vectors developed for multi-hypothesis coding applications. According to these techniques, when coding hypotheses are developed, each having a motion vector identifying a source of prediction for a current pixel block, a motion vector for a first one of the coding hypotheses may be predicted from the motion vector of a second coding hypothesis. The first motion vector may be represented by coding a motion vector residual, which represents a difference between the developed motion vector for the first coding hypothesis and the predicted motion vector for the first coding hypothesis, and outputting the coded residual to a channel. In another embodiment, a motion vector residual may be generated for a motion vector of a first coding hypothesis, and the first motion vector and the motion vector residual may be used to predict a second motion vector and a predicted motion vector residual. The second hypothesis's motion vector may be coded as a difference between the motion vector, the predicted second motion vector, and the predicted motion vector residual. In a further embodiment, a single motion vector residual may be output for the motion vectors of two coding hypotheses representing a difference between the motion vector of one of the hypotheses and a predicted motion vector for that hypothesis.

    HIERARCHICAL SEGMENTATION AND QUALITY MEASUREMENT FOR VIDEO EDITING
    5.
    发明申请
    HIERARCHICAL SEGMENTATION AND QUALITY MEASUREMENT FOR VIDEO EDITING 审中-公开
    视频编辑的分层分类和质量测量

    公开(公告)号：US20160358628A1

    公开(公告)日：2016-12-08

    申请号：US15173465

    申请日：2016-06-03

    Applicant: Apple Inc.

    Inventor： Shujie Liu ,  Yunfei Zheng ,  Xiaosong Zhou ,  Hsi-Jung Wu ,  Ke Zhang ,  Albert E. Keinath ,  Chris Y. Chung

    IPC: G11B27/031 ,  G06K9/00

    CPC classification number: G11B27/031 ,  G06K9/00718 ,  G06K9/00751 ,  G06K9/00765

    Abstract: Methods for organizing media data by automatically segmenting media data into hierarchical layers of scenes are described. The media data may include metadata and content having still image, video or audio data. The metadata may be content-based (e.g., differences between neighboring frames, exposure data, key frame identification data, motion data, or face detection data) or non-content-based (e.g., exposure, focus, location, time) and used to prioritize and/or classify portions of video. The metadata may be generated at the time of image capture or during post-processing. Prioritization information, such as a score for various portions of the image data may be based on the metadata and/or image data. Classification information such as the type or quality of a scene may be determined based on the metadata and/or image data. The classification and prioritization information may be metadata and may be used to organize the media data.

    Abstract translation: 描述了通过将媒体数据自动分割成层级的场景来组织媒体数据的方法。 媒体数据可以包括具有静止图像，视频或音频数据的元数据和内容。 元数据可以是基于内容的（例如，相邻帧之间的差异，曝光数据，关键帧识别数据，运动数据或面部检测数据）或非基于内容的（例如，曝光，焦点，位置，时间）并且被使用 对视频的部分进行优先排序和/或分类。 元数据可以在图像捕获时或在后处理期间生成。 诸如图像数据的各个部分的得分的优先级信息可以基于元数据和/或图像数据。 可以基于元数据和/或图像数据来确定诸如场景的类型或质量的分类信息。 分类和优先化信息可以是元数据，并且可以用于组织媒体数据。

    Media Analysis and Processing Framework on a Resource Restricted Device
    6.
    发明申请
    Media Analysis and Processing Framework on a Resource Restricted Device 审中-公开
    资源限制设备上的媒体分析和处理框架

    公开(公告)号：US20160357605A1

    公开(公告)日：2016-12-08

    申请号：US15173047

    申请日：2016-06-03

    Applicant: Apple Inc.

    Inventor： Albert Keinath ,  Ke Zhang ,  Yunfei Zheng ,  Shujie Liu ,  Jiefu Zhai ,  Chris Y. Chung ,  Xiaosong Zhou ,  Hsi-Jung Wu

    IPC: G06F9/50 ,  H04L29/08 ,  G06F9/48

    CPC classification number: G06F9/5011 ,  G06F9/46 ,  G06F9/4881 ,  H04L67/34 ,  H04N21/41407 ,  H04N21/4433

    Abstract: A system for processing media on a resource restricted device, the system including a memory to store data representing media assets and associated descriptors, and program instructions representing an application and a media processing system, and a processor to execute the program instructions, wherein the program instructions represent the media processing system, in response to a call from an application defining a plurality of services to be performed on an asset, determine a tiered schedule of processing operations to be performed upon the asset based on a processing budget associated therewith, and iteratively execute the processing operations on a tier-by-tier basis, unless interrupted.

    Abstract translation: 一种用于在资源受限设备上处理媒体的系统，所述系统包括用于存储表示媒体资产和相关联描述符的数据的存储器，以及表示应用和媒体处理系统的程序指令以及执行所述程序指令的处理器，其中所述程序 指令代表媒体处理系统，响应于来自定义要在资产上执行的多个服务的应用的呼叫，基于与其相关联的处理预算来确定要在资产上执行的处理操作的分层调度，并且迭代地 除非中断，否则逐级执行处理操作。

    ADAPTIVE SYNTAX GROUPING AND COMPRESSION IN VIDEO DATA
    7.
    发明申请
    ADAPTIVE SYNTAX GROUPING AND COMPRESSION IN VIDEO DATA 审中-公开
    自适应语音分组和压缩在视频数据

    公开(公告)号：US20150350646A1

    公开(公告)日：2015-12-03

    申请号：US14289082

    申请日：2014-05-28

    Applicant: Apple Inc.

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

    IPC: H04N19/115 ,  H04N19/44 ,  H04N19/176 ,  H04N19/96 ,  H04N19/157

    CPC classification number: H04N19/70

    Abstract: An encoding system may include a video source that captures video image, a video coder, and a controller to manage operation of the system. The video coder may encode the video image into encoded video data using a plurality of subgroup parameters corresponding to a plurality of subgroups of pixels within a group. The controller may set the subgroup parameters for at least one of the subgroups of pixels in the video coder, based upon at least one parameters corresponding to the group. A decoding system may decode the video data based upon the motion prediction parameters.

    Abstract translation: 编码系统可以包括捕获视频图像的视频源，视频编码器和用于管理系统的操作的控制器。 视频编码器可以使用与组内的多个像素组对应的多个子组参数将视频图像编码成编码视频数据。 基于对应于该组的至少一个参数，控制器可以为视频编码器中的至少一个像素组设置子组参数。 解码系统可以基于运动预测参数解码视频数据。

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