会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 15. 发明申请
    • DIGITAL VIDEO CODING WITH INTERPOLATION FILTERS AND OFFSETS
    • 数字视频编码与插值滤波器和偏移
    • WO2010039288A1
    • 2010-04-08
    • PCT/US2009/043391
    • 2009-05-08
    • QUALCOMM INCORPORATEDKARCZEWICZ, MartaMOTTA, GiovanniYE, YanCHEN, Peisong
    • KARCZEWICZ, MartaMOTTA, GiovanniYE, YanCHEN, Peisong
    • H04N7/26
    • H04N19/577H04N19/117H04N19/136H04N19/147H04N19/19H04N19/192H04N19/523H04N19/59H04N19/61H04N19/82
    • This disclosure describes techniques for encoding digital video data using interpolation filters and offsets. An encoder may be configured to select interpolation filters for sub-pixel precision motion estimation based on historical interpolation results obtained for previously encoded video units, such as frames or slices. The encoder also may be configured to compute and assign offsets to the sub-pixel positions after interpolation based on differences between a reference unit and the unit to be coded. The computation and assignment of offsets may be performed before motion estimation. Motion estimation may be refined so that the motion search considers sub-pixel positions to which offsets have been previously added and evaluates sub-pixel positions that have a non-zero offset. In some cases, interpolation filter selection, offset computation, and/or refined motion estimation for a given unit may be performed in a single encoding pass.
    • 本公开描述了使用内插滤波器和偏移量对数字视频数据进行编码的技术。 编码器可以被配置为基于针对先前编码的视频单元(诸如帧或片)获得的历史插值结果来选择子像素精度运动估计的内插滤波器。 编码器还可以被配置为基于参考单元和要编码的单元之间的差异来计算和分配插补之后的子像素位置的偏移。 可以在运动估计之前执行偏移的计算和分配。 可以改进运动估计,使得运动搜索考虑先前已经添加了偏移的子像素位置,并评估具有非零偏移的子像素位置。 在一些情况下,可以在单个编码过程中执行用于给定单元的内插滤波器选择,偏移计算和/或精细运动估计。