中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

203 records (took 0.026 seconds)

    VIDEO CODING TECHNIQUES FOR HIGH QUALITY CODING OF LOW MOTION CONTENT
    26.
    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
    27.
    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。

    Inferred key frames for fast initiation of video coding sessions
    28.
    发明授权
    Inferred key frames for fast initiation of video coding sessions 有权
    用于快速启动视频编码会话的推断关键帧

    公开(公告)号：US09451288B2

    公开(公告)日：2016-09-20

    申请号：US13631793

    申请日：2012-09-28

    Applicant: Apple Inc.

    Inventor： Hsi-Jung Wu ,  Xiaosong Zhou

    IPC: H04N7/12 ,  H04N19/65 ,  H04N19/105 ,  H04N19/172 ,  H04N19/107

    CPC classification number: H04N19/65 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172

    Abstract: A video coding system may initiate coding of a new coding session with reference to an “inferred key frame” that is known both to an encoder and a decoder before a coding session begins. The inferred key frame need not be transmitted between the encoder and decoder via the channel. Instead, the inferred key frame may be stored locally at the encoder and the decoder. Frames coded at the onset of a video coding session may be coded with reference to the inferred key frame, which increases the likelihood a decoder will receive a frame it can decode properly and accelerate the rate at which the decoder generates recovered video data. Inferred key frames may be used as prediction references to recover from transmission errors.

    Abstract translation: 参考在编码会话开始之前编码器和解码器已知的“推断的关键帧”，视频编码系统可以启动对新编码会话的编码。 所推断的关键帧不需要经由信道在编码器和解码器之间传输。 相反，所推断的关键帧可以本地存储在编码器和解码器处。 可以参考推断的关键帧来对视频编码会话开始时编码的帧进行编码，这增加了解码器可以正确接收到帧的可能性，并且加速了解码器产生恢复的视频数据的速率。 可以将推断的关键帧用作从传输错误中恢复的预测参考。

    TECHNIQUES FOR ADAPTIVE VIDEO STREAMING
    29.
    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。

Patent Agency Ranking