VIDEO ENCODING AND DECODING
    2.
    发明申请
    VIDEO ENCODING AND DECODING 审中-公开
    视频编码和解码

    公开(公告)号:US20140064369A1

    公开(公告)日:2014-03-06

    申请号:US14003789

    申请日:2012-03-08

    IPC分类号: H04N7/36

    摘要: Motion vectors of a first reference frame are permitted to point to a plurality of further reference frames. A method of storing the motion vectors comprises, when a block of the first reference frame has two motion vectors initially, selecting one of the two motion vectors, the non-selected motion vector not being stored. The selected motion vector may be scaled. This can reduce the motion vector memory size.

    摘要翻译: 允许第一参考帧的运动矢量指向多个另外的参考帧。 存储运动矢量的方法包括:当第一参考帧的块最初具有两个运动矢量时,选择两个运动矢量中的一个,未被存储的未选择的运动矢量。 所选择的运动矢量可以被缩放。 这可以减少运动矢量内存大小。

    Techniques to perform fast motion estimation
    5.
    发明授权
    Techniques to perform fast motion estimation 有权
    执行快速运动估计的技术

    公开(公告)号:US08964829B2

    公开(公告)日:2015-02-24

    申请号:US13725408

    申请日:2012-12-21

    发明人: Ce Wang Walid Ali

    IPC分类号: H04N7/12 H04N19/51 H04N19/533

    摘要: Techniques to perform fast motion estimation are described. An apparatus may comprise a motion estimator operative to receive as input a current frame and a reference frame from a digital video sequence. The motion estimator may generate and output a motion vector. The motion vector may represent a change in position between a current block of the current frame and a matching reference block of the reference frame. The motion estimator may utilize an enhanced block matching technique to perform block matching based on stationary and spatially proximate blocks. Other embodiments are described and claimed.

    摘要翻译: 描述了执行快速运动估计的技术。 一种装置可以包括运动估计器,用于从数字视频序列接收当前帧和参考帧作为输入。 运动估计器可以生成和输出运动矢量。 运动矢量可以表示当前帧的当前块和参考帧的匹配参考块之间的位置变化。 运动估计器可以利用增强的块匹配技术来执行基于固定和空间上邻近块的块匹配。 描述和要求保护其他实施例。

    Techniques to perform fast motion estimation

    公开(公告)号:US08363727B2

    公开(公告)日:2013-01-29

    申请号:US12241662

    申请日:2008-09-30

    申请人: Ce Wang Walid Ali

    发明人: Ce Wang Walid Ali

    IPC分类号: H04N7/12

    摘要: Techniques to perform fast motion estimation are described. An apparatus may comprise a motion estimator operative to receive as input a current frame and a reference frame from a digital video sequence. The motion estimator may generate and output a motion vector. The motion vector may represent a change in position between a current block of the current frame and a matching reference block of the reference frame. The motion estimator may utilize an enhanced block matching technique to perform block matching based on stationary and spatially proximate blocks. Other embodiments are described and claimed.

    Method and Apparatus of Spatial Motion Vector Prediction
    7.
    发明申请
    Method and Apparatus of Spatial Motion Vector Prediction 有权
    空间运动矢量预测的方法与装置

    公开(公告)号:US20120128060A1

    公开(公告)日:2012-05-24

    申请号:US13047600

    申请日:2011-03-14

    IPC分类号: H04N7/26 H04N7/32

    摘要: An apparatus and method for deriving a motion vector predictor or a motion vector predictor candidate or a motion vector or a motion vector candidate for a current block are disclosed. In video coding systems, the spatial and temporal redundancy is exploited using spatial and temporal prediction to reduce the information to be transmitted or stored. Motion Vector Prediction (MVP) has been used to further conserve the bitrate associated with motion vector coding. The MVP technique being developed for the current HEVC only considers the motion vector having the same reference list and the same reference picture index as the current block to be an available spatial motion vector predictor candidate. It is desirable to develop a MVP scheme that can improve the availability of the motion vector predictor candidate based on motion vectors from the spatially neighboring block. Accordingly, an apparatus and method for determining a motion vector predictor or motion vector predictor candidate or motion vector or motion vector candidate for a current block based on motion vectors associated with reference pictures in list 0 and list 1 of a neighboring block are disclosed. The improved MVP scheme may reduce motion vector residues and consequently the coding efficiency can be improved. Furthermore, the MVP scheme is based on a priority order so that the predictor can be derived at the decoder using decoded information without side information.

    摘要翻译: 公开了一种用于导出运动矢量预测器或运动矢量预测器候选或用于当前块的运动矢量或运动矢量候选的装置和方法。 在视频编码系统中,使用空间和时间预测来利用空间和时间冗余来减少要发送或存储的信息。 运动矢量预测(MVP)已被用于进一步节省与运动矢量编码相关的比特率。 针对当前HEVC开发的MVP技术仅考虑具有与当前块相同的参考列表和相同参考图像索引的运动矢量作为可用的空间运动矢量预测器候选。 期望开发可以基于来自空间相邻块的运动矢量来提高运动矢量预测器候选的可用性的MVP方案。 因此,公开了一种用于基于与相邻块的列表0和列表1中的参考图片相关联的运动矢量来确定当前块的运动矢量预测器或运动矢量预测器候选或运动矢量或运动矢量候选的装置和方法。 改进的MVP方案可以减少运动矢量残差,从而可以提高编码效率。 此外,MVP方案基于优先级顺序,使得可以在解码器处使用没有副信息的解码信息来导出预测器。