METHODS AND APPARATUS FOR A CLASSIFICATION-BASED LOOP FILTER
    38.
    发明申请
    METHODS AND APPARATUS FOR A CLASSIFICATION-BASED LOOP FILTER 审中-公开
    用于基于分类的环路滤波器的方法和装置

    公开(公告)号:US20120320973A1

    公开(公告)日:2012-12-20

    申请号:US13581875

    申请日:2011-03-02

    IPC分类号: H04N7/30

    摘要: Methods and apparatus for a classification-based loop filter are provided. An encoding method encodes an input picture by transforming and quantizing a residue of the input picture to obtain quantized transform coefficients. Then inverse quantizing and inverse transforming the quantized transform coefficients to obtain a reconstructed version of the residue. A reconstructed version of the input picture is obtained by combining at least one reference picture with the reconstructed version of the residue. Pixels in the reconstructed version of the input picture are classified within a respective one of a plurality of categories responsive to local geometric characteristics. Pixels are selected for filtering responsive to a corresponding classification of the pixels with respect to the plurality of categories.

    摘要翻译: 提供了基于分类的环路滤波器的方法和装置。 编码方法通过变换和量化输入图像的残差来编码输入图像,以获得量化的变换系数。 然后逆量化和逆变换量化的变换系数以获得残差的重构版本。 通过将至少一个参考图像与残差的重构版本组合来获得输入图像的重建版本。 将输入图像的重建版本中的像素分类为响应于局部几何特征的多个类别中的相应的一个。 响应于相对于多个类别的像素的相应分类,选择像素进行滤波。

    METHODS AND APPARATUS FOR ADAPTIVE FILTERING OF PREDICTION PIXELS FOR CHROMA COMPONENTS IN VIDEO ENCODING AND DECODING
    39.
    发明申请
    METHODS AND APPARATUS FOR ADAPTIVE FILTERING OF PREDICTION PIXELS FOR CHROMA COMPONENTS IN VIDEO ENCODING AND DECODING 审中-公开
    用于自适应滤波的视频编码和解码中的色彩成分的预测像素的方法和装置

    公开(公告)号:US20120201311A1

    公开(公告)日:2012-08-09

    申请号:US13500119

    申请日:2010-09-30

    IPC分类号: H04N7/26

    摘要: Methods and apparatus are provided for adaptive filtering of prediction pixels for chroma components in video encoding and decoding. An apparatus includes a video encoder for encoding picture data for at least a portion of a picture. The video encoder includes an adaptive filter for performing filtering of prediction data used to generate an intra prediction for a chroma component of the portion of the picture. The filtering is adaptive with respect to at least one of filter parameters for the filtering and whether the filtering is used or bypassed.

    摘要翻译: 提供了用于对视频编码和解码中的色度分量的预测像素进行自适应滤波的方法和装置。 一种装置包括用于对图像的至少一部分编码图像数据的视频编码器。 视频编码器包括自适应滤波器,用于对用于生成图像部分的色度分量的帧内预测的预测数据进行滤波。 滤波对于滤波器的滤波器参数和滤波是否被使用或旁路中的至少一个是自适应的。

    METHODS AND APPARATUS FOR ADAPTIVE CODING OF MOTION INFORMATION
    40.
    发明申请
    METHODS AND APPARATUS FOR ADAPTIVE CODING OF MOTION INFORMATION 审中-公开
    自适应编码运动信息的方法和装置

    公开(公告)号:US20120201293A1

    公开(公告)日:2012-08-09

    申请号:US13501535

    申请日:2010-10-04

    IPC分类号: H04N7/26

    摘要: Methods and apparatus are provided for adaptive coding of motion information. An apparatus includes an encoder for encoding at least a block in a picture using a motion vector. An adaptive motion vector accuracy scheme is used to select an accuracy of the motion vector used to encode the block. Selection criteria for selecting the accuracy for the motion vector include non-rate-distortion-based criteria.

    摘要翻译: 提供了用于运动信息的自适应编码的方法和装置。 一种装置包括:编码器,用于使用运动矢量对图像中的至少一个块进行编码。 使用自适应运动矢量精度方案来选择用于编码块的运动矢量的精度。 用于选择运动矢量精度的选择标准包括非速率失真的准则。