Apparatus and method for encoding/decoding multi-plane images using bi-prediction and recording medium using same
    2.
    发明授权
    Apparatus and method for encoding/decoding multi-plane images using bi-prediction and recording medium using same 有权
    使用双预测和记录介质对多平面图像进行编码/解码的装置和方法

    公开(公告)号:US09307255B2

    公开(公告)日:2016-04-05

    申请号:US13514204

    申请日:2010-11-22

    摘要: The present disclosure relates to technology for generating an efficient predicted image by using a correlation between color planes in encoding of a multi-plane video. An apparatus for encoding a multi-plane video including two or more color planes by using a bi-prediction includes: an intra-predictor for generating a first predicted block by performing an intra-prediction on a current block of a current plane; an inter-plane predictor for generating a second predicted block by performing an inter-plane prediction; a dual-plane predictor for generating a third predicted block based on the first predicted block and the second predicted block; an optimum mode determiner for selecting one optimum predicted block having a highest encoding efficiency from the first to third predicted blocks; and an encoder or a decoder for encoding or decoding the current block based on a selected optimum predicted block.

    摘要翻译: 本公开涉及通过使用多平面视频的编码中的彩色平面之间的相关来生成有效的预测图像的技术。 一种用于通过使用双重预测对包括两个或多个彩色平面的多平面视频进行编码的装置包括:用于通过对当前平面的当前块执行帧内预测来产生第一预测块的预测器; 用于通过执行平面间预测来生成第二预测块的平面间预测器; 用于基于第一预测块和第二预测块生成第三预测块的双平面预测器; 用于从第一至第三预测块中选择具有最高编码效率的一个最佳预测块的最佳模式确定器; 以及用于基于所选择的最佳预测块对当前块进行编码或解码的编码器或解码器。

    Image-encoding apparatus and method, transform-encoding apparatus and method, apparatus and method for generating a transform base, and image-decoding apparatus and method used in same
    3.
    发明授权
    Image-encoding apparatus and method, transform-encoding apparatus and method, apparatus and method for generating a transform base, and image-decoding apparatus and method used in same 有权
    图像编码装置及方法,变换编码装置及其生成方法,装置及方法,以及图像编码装置和方法

    公开(公告)号:US09271000B2

    公开(公告)日:2016-02-23

    申请号:US13514552

    申请日:2010-12-09

    摘要: A video encoding apparatus includes an intra prediction error collector; a transform base generator; an intra predictor; and a transform encoder, the intra prediction error collector collecting prediction errors of blocks having an equal intra prediction mode from macroblocks in a regular unit, which are encoded prior to a current macroblock, the transform base generator generating transform bases for respective intra prediction modes based on the prediction errors collected by the intra prediction error collector. Accordingly, the intra prediction encoding performance can be significantly improved with adding no addition information by adaptively generating a transform base according to an image characteristic change and transform-encoding an intra prediction error. As a result, the compression efficiency of a video compression apparatus or the picture quality of a reconstructed image can be greatly improved.

    摘要翻译: 视频编码装置包括帧内预测误差采集器; 变换基地发生器; 内部预测因子 以及变换编码器,帧内预测误差收集器从在当前宏块之前编码的常规单位的宏块中收集具有相同帧内预测模式的块的预测误差,所述变换基站生成器生成用于各帧内预测模式的变换基 关于帧内预测误差采集器收集的预测误差。 因此,通过根据图像特征变化自适应地生成变换基,并对帧内预测误差进行变换编码,可以不增加附加信息,可以显着提高帧内预测编码性能。 结果,可以大大提高视频压缩装置的压缩效率或重建图像的图像质量。

    Apparatus and method for encoding images, and apparatus and method for decoding images
    5.
    发明授权
    Apparatus and method for encoding images, and apparatus and method for decoding images 有权
    用于编码图像的装置和方法,以及用于对图像进行解码的装置和方法

    公开(公告)号:US08768083B2

    公开(公告)日:2014-07-01

    申请号:US13581206

    申请日:2011-02-25

    摘要: Image encoding/decoding apparatus and method are disclosed. The image encoding apparatus includes: a target block splitter for splitting a target block of an input image to be encoded into a plurality of subblocks according to positions of pixels; a key block encoding unit for selecting a random key block, the size of which is larger than a pixel size of at least one of the plurality of subblocks split by the target block splitter, and performing an intra-prediction or inter-prediction encoding process on the selected key block; and a non-key block encoding unit for designating the rest of the subblocks, except for the selected key block, as a non-key block, and performing a spatial prediction process on the designated non-key block by using a key block reconstructed by the key block encoding unit and values of peripheral pixels of a current block.

    摘要翻译: 公开了图像编码/解码装置和方法。 图像编码装置包括:目标块分割器,用于根据像素的位置将待编码的输入图像的目标块分割成多个子块; 键块编码单元,用于选择其尺寸大于由目标块分割器分割的多个子块中的至少一个的像素大小的随机密钥块,并且执行帧内预测或帧间预测编码处理 在选定的关键块上; 以及非密钥块编码单元,用于将除所选择的密钥块之外的其余子块指定为非密钥块,并且通过使用由所述密钥块重建的密钥块对所述指定的非密钥块执行空间预测处理, 密钥块编码单元和当前块的周边像素的值。

    VIDEO ENCODING DEVICE AND ENCODING METHOD THEREOF, VIDEO DECODING DEVICE AND DECODING METHOD THEREOF, AND DIRECTIONAL INTRA-PREDICTION METHOD TO BE USED THERETO
    6.
    发明申请
    VIDEO ENCODING DEVICE AND ENCODING METHOD THEREOF, VIDEO DECODING DEVICE AND DECODING METHOD THEREOF, AND DIRECTIONAL INTRA-PREDICTION METHOD TO BE USED THERETO 有权
    视频编码设备及其编码方法,视频解码设备及其解码方法,以及使用的方向预测方法

    公开(公告)号:US20120320975A1

    公开(公告)日:2012-12-20

    申请号:US13513302

    申请日:2010-11-25

    IPC分类号: H04N7/32

    CPC分类号: H04N19/11 H04N19/593

    摘要: The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.

    摘要翻译: 本公开提供了一种视频编码装置及其编码方法,其视频解码装置及其解码方法以及用于其的定向帧内预测方法。 视频编码装置包括:主模式搜索单元,用于从定向帧内预测模式中搜索当前块的主模式; 子模式搜索单元,用于搜索通过主模式搜索单元将所找到的主模式的指示方位倾斜预定的偏移在顺时针和逆时针方向上形成的子模式; 预测块发生器,用于通过主模式搜索单元基于找到的主模式产生当前块的当前块的预测块,并由子模式搜索单元发现子模式; 用于计算当前块和预测块之间的差分的微分器; 以及用于通过微分器对计算出的微分进行编码的编码器。

    Motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and image encoding/decoding method and apparatus using same
    9.
    发明授权
    Motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and image encoding/decoding method and apparatus using same 有权
    使用运动矢量分辨率组合的运动矢量编码/解码方法和装置,以及使用它的图像编码/解码方法和装置

    公开(公告)号:US09491480B2

    公开(公告)日:2016-11-08

    申请号:US13583533

    申请日:2011-03-04

    摘要: The present disclosure provides a motion vector encoding/decoding method and apparatus using a motion vector resolution combination, and an image encoding/decoding method and apparatus using the same. A motion vector encoding apparatus include: an encoding cost calculator for calculating an encoding cost according to a motion vector resolution for each motion vector resolution combination including one or more motion vector resolutions; a resolution combination determiner for selecting a motion vector resolution combination by using the encoding cost calculated for each motion vector resolution combination; and a motion information encoder for outputting encoded motion vector data generated by encoding a motion vector determined according to the motion vector resolution combination selected, as a bitstream. Accordingly, an efficient motion vector resolution combination is selected adaptively and a motion vector is determined and decoded based on the motion vector resolution combination, thus making it possible to improve compression efficiency.

    摘要翻译: 本公开提供了使用运动矢量分辨率组合的运动矢量编码/解码方法和装置,以及使用其的图像编码/解码方法和装置。 运动矢量编码装置包括:编码成本计算器,用于根据包括一个或多个运动矢量分辨率的每个运动矢量分辨率组合根据运动矢量分辨率计算编码成本; 分辨率组合确定器,用于通过使用为每个运动矢量分辨率组合计算的编码成本来选择运动矢量分辨率组合; 以及运动信息编码器,用于输出通过编码根据所选择的运动矢量分辨率组合确定的运动矢量而生成的编码运动矢量数据作为比特流。 因此,自适应地选择有效的运动矢量分辨率组合,并且基于运动矢量分辨率组合来确定和解码运动矢量,从而可以提高压缩效率。

    Adaptive secondary prediction-based image encoding/decoding method, device and recording medium
    10.
    发明授权
    Adaptive secondary prediction-based image encoding/decoding method, device and recording medium 有权
    基于自适应二次预测的图像编码/解码方法,设备和记录介质

    公开(公告)号:US09288495B2

    公开(公告)日:2016-03-15

    申请号:US13511347

    申请日:2010-11-24

    摘要: The present disclosure provides a video encoding/decoding method including: selectively frequency transforming a first residual block generated by subtracting a predicted block from a current block, generating a first quantized block for the first residual block or the frequency transformed first residual block, generating a second quantized block, if the first quantized block is a quantized first residual block from quantizing the first residual block, through selectively performing a secondary prediction on the quantized first residual block by using a secondary predicted motion vector set, encoding information on whether the frequency transforming is performed and selectively encoding information on the secondary prediction, encoding the first quantized block or the second quantized block into a bitstream, and decoding the same.

    摘要翻译: 本公开提供了一种视频编码/解码方法,包括:选择性地频率变换通过从当前块减去预测块而产生的第一残差块,产生用于第一残差块或频率变换的第一残差块的第一量化块, 第二量化块,如果第一量化块是从量化第一残差块的量化的第一残差块,则通过使用二次预测运动矢量集选择性地对量化的第一残差块执行二次预测,编码关于频率变换的信息 并且对二次预测进行选择性地编码信息,将第一量化块或第二量化块编码为比特流,并对其进行解码。