APPARATUS AND METHOD FOR MULTILAYER PICTURE ENCODING/DECODING
    1.
    发明申请
    APPARATUS AND METHOD FOR MULTILAYER PICTURE ENCODING/DECODING 有权
    多层图像编码/解码的装置和方法

    公开(公告)号:US20130300923A1

    公开(公告)日:2013-11-14

    申请号:US13946579

    申请日:2013-07-19

    CPC classification number: H04N7/0117 H04N19/33 H04N19/36 H04N19/51

    Abstract: Provided is a multilayer picture encoding/decoding apparatus and method for reducing a dynamic range of residual pictures occurring in enhancement layers. The multilayer picture encoding method includes performing format down-conversion on an input picture, and generating a lower layer bitstream by encoding the format down-converted input picture; performing format up-conversion by adaptively or selectively applying a 1-dimensional (1-D) prediction filter to a picture of the lower layer depending on whether a lower layer prediction flag is set or not; and calculating a residual picture between the input picture and the format up-converted picture, and generating an enhancement bitstream by encoding the calculated residual picture.

    Abstract translation: 提供了一种用于减少在增强层中发生的残留图像的动态范围的多层图像编码/解码装置和方法。 多层图像编码方法包括对输入图像执行格式下变换,并且通过对格式降低转换的输入图像进行编码来生成下层比特流; 根据是否设置较低层预测标志,通过自适应地或选择性地将一维(1-D)预测滤波器应用于下层的图像来执行格式上变换; 以及计算输入图像和格式上变换图像之间的残差图像,以及通过对所计算的残差图像进行编码来生成增强比特流。

    METHOD AND DEVICE FOR ENCODING IMAGE USING PREPROCESSING
    2.
    发明申请
    METHOD AND DEVICE FOR ENCODING IMAGE USING PREPROCESSING 审中-公开
    使用预处理方法编码图像的方法和装置

    公开(公告)号:US20160134871A1

    公开(公告)日:2016-05-12

    申请号:US14939265

    申请日:2015-11-12

    CPC classification number: H04N19/117 H04N19/14 H04N19/182 H04N19/86

    Abstract: A method of encoding an image includes obtaining a quantization parameter; determining a size of a smoothing block based on the quantization parameter, determining threshold values based on a main pixel in the smoothing block, selecting a pixel having a pixel value between the threshold values, from among pixels included in the smoothing block, performing a smoothing operation with respect to the main pixel based on the pixel value of the selected pixel, and encoding an image with respect to which the smoothing operation is performed.

    Abstract translation: 编码图像的方法包括获得量化参数; 基于量化参数确定平滑块的尺寸,基于平滑块中的主像素确定阈值,从包括在平滑块中的像素中选择具有阈值之间的像素值的像素,执行平滑 基于所选择的像素的像素值对主像素进行操作,以及对执行平滑处理的图像进行编码。

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