Power efficient motion estimation techniques for video encoding
    9.
    发明授权
    Power efficient motion estimation techniques for video encoding 有权
    用于视频编码的功率有效的运动估计技术

    公开(公告)号:US09591326B2

    公开(公告)日:2017-03-07

    申请号:US13638628

    申请日:2010-03-31

    Abstract: Adaptive control can use hierarchical motion estimation (HME) and/or multiple reference motion estimation (MRME) for the motion estimation of current encoding blocks. Both HME and MRME are allowed in the motion estimation to achieve a high coding gain. Control consists of slice level control and macro-block (MB) level control. A slice is one or more contiguous macroblocks. In slice level control, it is decided to use only one reference frame or use multiple reference frames to coding current slice based on the motion vectors obtained in coarse level motion estimation. In MB level control, it is decided to perform MRME or perform HME for the MB and its subblocks based on the coarse level motion vectors of the MB.

    Abstract translation: 自适应控制可以对当前编码块的运动估计使用分层运动估计(HME)和/或多参考运动估计(MRME)。 在运动估计中允许HME和MRME两者实现高编码增益。 控制由片级控制和宏块(MB)级控制组成。 切片是一个或多个连续的宏块。 在片级控制中,决定仅使用一个参考帧或者使用多个参考帧来基于在粗略级运动估计中获得的运动矢量对当前片进行编码。 在MB级别控制中,决定执行MRME或基于MB的粗略级别运动向量对MB及其子块执行HME。

    Histogram Segmentation Based Local Adaptive Filter for Video Encoding and Decoding
    10.
    发明申请
    Histogram Segmentation Based Local Adaptive Filter for Video Encoding and Decoding 有权
    用于视频编码和解码的基于直方图分割的局部自适应滤波器

    公开(公告)号:US20140086304A1

    公开(公告)日:2014-03-27

    申请号:US13991592

    申请日:2012-09-24

    Abstract: Reconstructed picture quality for a video codec system may be improved by categorizing reconstructed pixels into different histogram bins with histogram segmentation and then applying different filters on different bins. Histogram segmentation may be performed by averagely dividing the histogram into M bins or adaptively dividing the histogram into N bins based on the histogram characteristics. Here M and N may be a predefined, fixed, non-negative integer value or an adaptively generated value at encoder side and may be sent to decoder through the coded bitstream.

    Abstract translation: 通过将重建的像素分类为具有直方图分割的不同的直方图箱,然后在不同的箱上应用不同的过滤器,可以改进用于视频编解码器系统的重构图像质量。 直方图分割可以通过将直方图平均地划分成M个箱或者基于直方图特征将直方图自适应地划分成N个箱来执行。 这里M和N可以是编码器侧的预定义的,固定的,非负整数值或自适应产生的值,并且可以通过编码比特流发送到解码器。

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