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    Trajectory planning for video stabilization
    61.
    发明授权
    Trajectory planning for video stabilization 有权

    公开(公告)号：US10158802B2

    公开(公告)日：2018-12-18

    申请号：US15502990

    申请日：2014-09-19

    Applicant: INTEL CORPORATION

    Inventor： Xiaoxia Cai ,  Chen Wang ,  Lidong Xu ,  Yi-Jen Chiu

    IPC: H04N5/232

    Abstract: Trajectory planning is described for video stabilization. In one example, a sequence of video frames is received and low-pass filtered. If a subset of the low-pass filtered frames are determined to be zero-motion frames, then a smooth trajectory is estimated for the for the zero-motion frames. Jitter is removed from the zero-motion frames using the smooth trajectory and frame warping is applied to the zero-motion frames with jitter removed.

    Simplified depth coding with modified intra-coding for 3D video coding
    67.
    发明授权
    Simplified depth coding with modified intra-coding for 3D video coding 有权
    用于3D视频编码的经过修改的帧内编码的简化深度编码

    公开(公告)号：US09571809B2

    公开(公告)日：2017-02-14

    申请号：US14129455

    申请日：2013-08-21

    Applicant: Intel Corporation

    Inventor： Zhipin Deng ,  Yi-Jen Chiu ,  Lidong Xu ,  Wenhao Zhang ,  Yu Han ,  Xiaoxia Cai ,  Hong Jiang

    IPC: H04N19/597 ,  H04N13/00

    CPC classification number: H04N13/106 ,  H04N13/161 ,  H04N19/597

    Abstract: Systems, mediums, and methods for simplified depth coding for 3D video coding comprises performing modified intra DC coding or modified intra planar coding of at least one coding unit associated with a plurality of pixels and of at least one depth map, and comprising forming a prediction value of the at least one coding unit.

    Abstract translation: 用于3D视频编码的简化深度编码的系统，介质和方法包括对与多个像素和至少一个深度图相关联的至少一个编码单元执行修改的DC内编码或修改的平面内编码，并且包括形成预测 所述至少一个编码单元的值。

    Methods and apparatus for adaptively choosing a search range for motion estimation
    68.
    发明授权
    Methods and apparatus for adaptively choosing a search range for motion estimation 有权

    公开(公告)号：US09445103B2

    公开(公告)日：2016-09-13

    申请号：US13895939

    申请日：2013-05-16

    Applicant: Intel Corporation

    Inventor： Lidong Xu ,  Yi-Jen Chiu

    IPC: H04N19/139 ,  H04N5/14 ,  H04N19/56 ,  H04N19/513 ,  H04N19/57

    CPC classification number: H04N19/139 ,  H04N5/144 ,  H04N19/513 ,  H04N19/521 ,  H04N19/56 ,  H04N19/57

    Abstract: Systems, methods, and computer program products that can be used to determine a search range (SR) when performing motion estimation at, for example, a video encoder or decoder. Determining a motion vector for a current block during motion estimation may involve searching within a search window that may reside in a reference frame, or in a previously decoded block that spatially or temporally neighbors the current block. Such a search seeks a motion vector that minimizes a metric, such as a sum of absolute differences between corresponding blocks of reference frames. A motion vector that minimizes such a metric may be a good candidate for use in motion estimation. The search may become more efficient if a search range is determined such that the extent of the search is bounded. A search range may be determined at the block level or at the picture level.

    Adaptive motion instability detection in video
    69.
    发明授权
    Adaptive motion instability detection in video 有权
    视频中的自适应运动不稳定检测

    公开(公告)号：US09336460B2

    公开(公告)日：2016-05-10

    申请号：US14218457

    申请日：2014-03-18

    Applicant: Intel Corporation

    Inventor： Lidong Xu ,  Chen Wang ,  Yi-Jen Chiu ,  Jong Dae Oh ,  Heon-Mo Koo

    IPC: G06K9/00 ,  G06K9/62 ,  H04N5/232

    CPC classification number: G06K9/6298 ,  H04N5/23267

    Abstract: One or more apparatus and method for adaptively detecting motion instability in video. In embodiments, video stabilization is predicated on adaptive detection of motion instability. Adaptive motion instability detection may entail determining an initial motion instability state associated with a plurality of video frames. Subsequent transitions of the instability state may be detected by comparing a first level of instability associated with a first plurality of the frames to a second level of instability associated with a second plurality of the frames. Image stabilization of received video frames may be toggled first based on the initial instability state, and thereafter based on detected changes in the instability state. Output video frames, which may be stabilized or non-stabilized, may then be stored to a memory. In certain embodiments, video motion instability is scored based on a probability distribution of video frame motion jitter values.

    Abstract translation: 一种或多种用于自适应地检测视频中的运动不稳定性的装置和方法。 在实施例中，视频稳定基于运动不稳定性的自适应检测。 自适应运动不稳定性检测可能需要确定与多个视频帧相关联的初始运动不稳定状态。 可以通过将与第一多个帧相关联的不稳定性的第一级别与与第二多个帧相关联的第二级不稳定性进行比较来检测不稳定状态的后续转换。 首先可以基于初始不稳定状态来切换所接收的视频帧的图像稳定性，然后基于检测到的不稳定状态的变化。 然后可以将稳定或不稳定的输出视频帧存储到存储器中。 在某些实施例中，基于视频帧运动抖动值的概率分布对视频运动不稳定性进行评分。

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