Video image encoding method, video image decoding method, encoding device, and decoding device

    公开(公告)号:US10349079B2

    公开(公告)日:2019-07-09

    申请号:US15678635

    申请日:2017-08-16

    Abstract: Embodiments of the present application relate to a video image encoding method, a video image decoding method, an encoding device, and a decoding device. The method includes: determining a motion vector group of a current encoding block; determining prediction values of a first component set of a motion model initialization vector; determining values of the first component set according to the prediction values of the first component set; and encoding the values of the first component set, and transmitting encoded values of the first component set. According to the video image encoding method in the embodiments of the present application, a motion model initialization vector is determined according to a motion vector group; values of a motion model are determined according to the motion model initialization vector. In this way, a volume of data and a quantity of occupied bits in encoding and decoding transmission can be reduced.

    Image Processing Method and Apparatus
    25.
    发明申请
    Image Processing Method and Apparatus 审中-公开
    图像处理方法和装置

    公开(公告)号:US20160295213A1

    公开(公告)日:2016-10-06

    申请号:US15178004

    申请日:2016-06-09

    Abstract: An image processing method includes acquiring N pieces of motion information from N adjacent image blocks adjacent to a current image block, where the N adjacent image blocks are in a one-to-one correspondence with the N pieces of motion information, and the N pieces of motion information are in a one-to-one correspondence with the N reference image blocks, determining candidate motion information from the N pieces of motion information according to a preset rule, determining, in the reference image, a location range of a to-be-stored pixel, and storing all pixels in the location range, where the location range covers all pixels of a candidate reference image block, and reading the pixels in the location range, and performing encoding processing on the current image block according to the pixels in the location range.

    Abstract translation: 一种图像处理方法包括从N个相邻图像块与N个运动信息一一对应地从与当前图像块相邻的N个相邻图像块中获取N个运动信息,并且N个 运动信息与N个参考图像块一一对应,根据预设的规则从N个运动信息确定候选运动信息,在参考图像中确定一个对应的运动信息的位置范围, 存储像素,并存储位置范围内的所有像素,其中位置范围覆盖候选参考图像块的所有像素,并且读取位置范围中的像素,并根据像素执行对当前图像块的编码处理 在位置范围内。

    Method, apparatus and system for rapid motion search applied in template matching
    26.
    发明授权
    Method, apparatus and system for rapid motion search applied in template matching 有权
    用于快速运动搜索的方法,装置和系统应用于模板匹配

    公开(公告)号:US09392297B2

    公开(公告)日:2016-07-12

    申请号:US14635835

    申请日:2015-03-02

    CPC classification number: H04N19/56 H04N19/176 H04N19/513 H04N19/567

    Abstract: A method, an apparatus and a system for a rapid motion search applied in template matching are disclosed. The method includes: selecting motion vectors of blocks related to a current block as candidate motion vectors of the current block; after the uniqueness of a series of the candidate motion vectors of the current block is maintained, calculating the cost function of the candidate motion vectors in a corresponding template area of a reference frame, and obtaining the motion vector of the best matching template from the candidate motion vectors of the current block. In the embodiments of the present invention, there is no need to determine a large search range and no need to determine the corresponding search path template, and it is only necessary to perform a search in a smaller range.

    Abstract translation: 公开了一种适用于模板匹配的快速运动搜索的方法,装置和系统。 该方法包括:选择与当前块相关的块的运动矢量作为当前块的候选运动矢量; 在保持当前块的一系列候选运动矢量的唯一性之后,计算参考帧的相应模板区域中的候选运动矢量的成本函数,并从候选者获得最佳匹配模板的运动矢量 当前块的运动矢量。 在本发明的实施例中,不需要确定大的搜索范围,并且不需要确定相应的搜索路径模板,并且仅需要在较小的范围内执行搜索。

    Image Encoding and Decoding Methods and Related Devices

    公开(公告)号:US20130216147A1

    公开(公告)日:2013-08-22

    申请号:US13848308

    申请日:2013-03-21

    Abstract: Image encoding and decoding methods and related devices are provided. An image encoding and decoding method includes: for a sub-image block obtained by partitioning an image block, determining at least two position parameters, in which the at least two position parameters include a first position parameter and a second position parameter, the first position parameter identifies whether the sub-image block is a rectangle or not a rectangle, and the second position parameter identifies endpoint information of the sub-image block; determining an encoding sequence of the first position parameter and the second position parameter according to a partition manner of the image block; and encoding the at least two position parameters according to the determined encoding sequence.

    Method and Device for Generating a Predicted Value of an Image
    28.
    发明申请
    Method and Device for Generating a Predicted Value of an Image 有权
    用于生成图像预测值的方法和装置

    公开(公告)号:US20130129242A1

    公开(公告)日:2013-05-23

    申请号:US13738773

    申请日:2013-01-10

    Abstract: A method and device for generating a predicted value of image that are mostly used to generate a predicted value of a current block during image encoding or decoding. The method includes: determining a searching scope, wherein multiple motion vectors are included in the searching scope; performing up-sampling interpolations on first reference blocks, corresponding to the motion vector in the searching scope, in a reference image of the current block by using a first filter to obtain up-sampled first reference blocks; by using the up-sampled first reference blocks, obtaining at least one candidate motion vector corresponding to the current block; performing up-sampling interpolations on second reference blocks, corresponding to the at least one candidate motion vector, in the reference image of the current block by using a second filter to obtain up-sampled second reference blocks; combining the up-sampled second reference blocks to obtain a predicted value of the current block.

    Abstract translation: 一种用于在图像编码或解码期间生成主要用于生成当前块的预测值的图像的预测值的方法和装置。 该方法包括:确定搜索范围,其中多个运动矢量包括在搜索范围内; 通过使用第一滤波器来获取上采样的第一参考块,在当前块的参考图像中对与搜索范围中的运动矢量相对应的第一参考块执行向上采样内插; 通过使用上采样的第一参考块,获得与当前块相对应的至少一个候选运动矢量; 通过使用第二滤波器来获取上采样的第二参考块,在当前块的参考图像中对应于至少一个候选运动矢量的第二参考块上执行上取样内插; 组合上采样的第二参考块以获得当前块的预测值。

    Picture prediction method and related apparatus

    公开(公告)号:US11172217B2

    公开(公告)日:2021-11-09

    申请号:US16845161

    申请日:2020-04-10

    Abstract: A picture prediction method and a related apparatus are disclosed. A picture prediction method includes: determining K1 pixel samples in a picture block x, and determining a candidate motion information unit set corresponding to each pixel sample in the K1 pixel samples, where the candidate motion information unit set corresponding to each pixel sample includes at least one candidate motion information unit; determining a merged motion information unit set i including K1 motion information units, where each motion information unit in the merged motion information unit set i is selected from at least a part of motion information units in candidate motion information unit sets corresponding to different pixel samples in the K1 pixel samples; and predicting a pixel value of the picture block x by using a non-translational motion model and the merged motion information unit set i.

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