Intra-block copying enhancements for HEVC in-range-extension (RExt)

    公开(公告)号:US10097853B2

    公开(公告)日:2018-10-09

    申请号:US15678716

    申请日:2017-08-16

    Abstract: High efficiency video coding (HEVC) enhancements are described for intrablock copying for reducing motion vector (MV) coding redundancy and enhancing in range extensions (RExt) by selecting a default block my predictor. In reducing MV data redundancy, the value of MVx and/or MVy can have a baseline at the width (W), or height (H) of the respective block, whereby fewer bits need to be encoded. One embodiment for enhancing RExt provides an improved selection of a default block vector predictor for the first CU performing intra-block copying in a CTU.

    Image processing efficient transmission or reception of encoded information

    公开(公告)号:US09992513B2

    公开(公告)日:2018-06-05

    申请号:US14650640

    申请日:2013-12-09

    CPC classification number: H04N19/597 H04N19/521 H04N19/573 H04N19/58 H04N19/70

    Abstract: The present disclosure relates to an image processing apparatus and a method that enable efficient change of reference relationship of views in multi-view coding. In the present technology, as for inter-view reference images, a used_by_curr flag is also set to an image having a possibility of being referred, in a slice header or syntax of an SPS. Only an image with the used_by_curr flag of 1 is added to a temporal list used in generating a reference list. Therefore, the temporal list (RefPicListTemp0[rldx]) of L0 is generated in an order of a short-term (before) reference image of an index 0, a short-term (after) reference image of an index 1, and inter-view reference images of indexes 2 and 3. The present disclosure can be applied to an image processing apparatus, for example.

    IMAGE PROCESSING DEVICE AND METHOD
    65.
    发明申请
    IMAGE PROCESSING DEVICE AND METHOD 有权
    图像处理装置和方法

    公开(公告)号:US20150215652A1

    公开(公告)日:2015-07-30

    申请号:US14420402

    申请日:2013-09-09

    Abstract: The present invention relates to image processing device and method which can suppress block noise. A filter strength determination unit determines the filter strength for every four lines under the control of a control unit. In other words, if a block boundary determination unit has determined to perform filtering, the filter strength determination unit determines at which strength of the strong filter or the weak filter the filtering process is performed, and outputs the determination result to a filter calculation unit. On this occasion, the filter strength determination unit uses the Bs value in the determination formula of the strong filter. For example, in the case of using the Bs value, the threshold of the determination is set in accordance with a linear function of the Bs value from the control unit. The present disclosure can be applied to, for example, an image processing device.

    Abstract translation: 本发明涉及能够抑制块噪声的图像处理装置和方法。 过滤器强度确定单元在控制单元的控制下确定每四行的过滤器强度。 换句话说,如果块边界确定单元已经确定进行滤波,则滤波强度确定单元确定执行滤波处理的强滤波器或弱滤波器的强度,并将确定结果输出到滤波器计算单元。 在这种情况下,滤波强度确定单元使用强滤波器的确定公式中的Bs值。 例如,在使用Bs值的情况下,根据来自控制单元的Bs值的线性函数来设定判定阈值。 本公开可以应用于例如图像处理装置。

    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD
    66.
    发明申请
    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD 审中-公开
    解码设备和解码方法,以及编码设备和编码方法

    公开(公告)号:US20150063466A1

    公开(公告)日:2015-03-05

    申请号:US14381643

    申请日:2013-03-27

    CPC classification number: H04N19/46 H04N13/161 H04N19/597

    Abstract: The present technology relates to a decoding device and a decoding method, and an encoding device and an encoding method that enable images that configure a packed image to be reliably displayed when an encoded stream is decoded and displayed. A decoding unit decodes an encoded data, the encoded data being an encoded packed image in which a plurality of images is packed, and generates the packed image. A display control unit identifies the images that configure the packed image based on packing SEI preferentially used when the packed image is displayed. The present technology can be applied to a decoding device, for example.

    Abstract translation: 本技术涉及一种解码装置和解码方法,以及编码装置和编码方法,当编码流被解码和显示时,使得能够可靠地显示打印图像的图像。 解码单元解码编码数据,编码数据是其中打包多个图像的编码打包图像,并且生成打包图像。 显示控制单元基于当显示打包图像时优先使用的打包SEI来识别配置打包图像的图像。 例如,本技术可以应用于解码装置。

    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD
    67.
    发明申请
    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD 有权
    解码设备和解码方法,以及编码设备和编码方法

    公开(公告)号:US20150030074A1

    公开(公告)日:2015-01-29

    申请号:US14382034

    申请日:2013-03-27

    Abstract: The present technique relates to a decoding device and a decoding method, and an encoding device and an encoding method, capable of performing encoding and decoding independently in the time direction for each tile. A decoding unit generates a prediction image by performing, for each of tiles, motion compensation of a reference image within a co-located tile based on tile splittable information indicating that decoding is allowed for each of the tiles and motion vector information representing a motion vector used for generating encoded data of a decoding target current image when a picture of the current image is split into the tiles and decoded. The decoding unit decodes the encoded data using the prediction image. The present technique is applicable to a decoding device, for example.

    Abstract translation: 本技术涉及能够在每个瓦片的时间方向上独立进行编码和解码的解码装置和解码方法以及编码装置和编码方法。 解码单元通过对于每个瓦片执行基于相同位置的瓦片内的参考图像的运动补偿,生成预测图像,其基于表示每个瓦片允许解码的瓦片可分解信息和表示运动矢量的运动矢量信息 用于当当前图像的图像被分割成瓦片并被解码时,生成解码目标当前图像的编码数据。 解码单元使用预测图像解码编码数据。 本技术例如适用于解码装置。

    Image processing system, image processing method and program
    69.
    发明授权
    Image processing system, image processing method and program 有权
    图像处理系统,图像处理方法和程序

    公开(公告)号:US08625914B2

    公开(公告)日:2014-01-07

    申请号:US13758602

    申请日:2013-02-04

    Abstract: There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.

    Abstract translation: 提供了一种图像处理系统和能够在解码以块为单位编码的图像数据的情况下抑制块失真的图像处理方法。 控制单元基于要滤波的块图像数据的编码类型来选择要应用于块图像数据的滤波内容,并且滤波单元根据由以下所选择的滤波内容对要处理的块图像数据进行滤波: 控制单元。

    Image processing apparatus and image processing method

    公开(公告)号:US12047597B2

    公开(公告)日:2024-07-23

    申请号:US17217513

    申请日:2021-03-30

    Inventor: Ohji Nakagami

    Abstract: The present disclosure relates to an image processing apparatus and an image processing method that are capable of improving coding efficiency at the time when a prediction using a correlation within a screen is performed. A predicted vector generation section sets, at a time of encoding of a current motion vector of a current block for a prediction using a correlation within a screen, a candidate block to not available and generates a predicted vector of the current motion vector by using a reference motion vector, the reference motion vector being referred to when the predicted vector of the current motion vector is generated. A difference vector generation section generates a difference vector between the current motion vector and the predicted vector generated by the predicted vector generation section. The present disclosure can be applied to, for example, an encoding apparatus.

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