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

    IPC分类号: H04N7/26

    摘要: 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.

    摘要翻译: 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。