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    • 43. 发明申请
    • METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING ADAPTIVE MOTION VECTOR RESOLUTION
    • 使用自适应运动矢量分辨率编码/解码图像的方法和装置
    • WO2011021915A3
    • 2011-06-16
    • PCT/KR2010005572
    • 2010-08-23
    • SK TELECOM CO LTDKIM SUNYEONLIM JEONGYEONMOON JOOHEELEE YUNGLYULKIM HAEKWANGJEON BYEUNGWOOLEE JUOCKKIM DONGWON
    • KIM SUNYEONLIM JEONGYEONMOON JOOHEELEE YUNGLYULKIM HAEKWANGJEON BYEUNGWOOLEE JUOCKKIM DONGWON
    • H04N7/32H04N7/36
    • H04N19/523H04N19/56H04N19/61
    • The present invention relates to an apparatus and a method for determining a motion vector. The apparatus for determining the motion vector according to an embodiment of the present invention comprises: a block identification unit for identifying a same position block included in a reference picture as a block which is at the same position as a present block; a motion block determination unit for determining whether the present block is a motion block on the basis of the motion vector of the same position block; a motion vector decision unit for deciding the motion vector of the present block according to the determined result; and a resolution conversion unit for converting the resolution of the motion vector of the same position block. According to the present invention, the motion vector resolution is decided in each image region or each motion vector. Inter-prediction encoding or decoding is performed by using the motion vector having the motion vector resolution which is adaptively decided with respect to images. In addition, the present invention enables efficient encoding by adaptively changing the motion vector resolution in predetermined region units of the images and performing the inter-prediction encoding for the images.
    • 本发明涉及用于确定运动矢量的装置和方法。 根据本发明的实施例的用于确定运动矢量的装置包括:块识别单元,用于将包括在参考图片中的相同位置块识别为与当前块位于相同位置的块; 运动块确定单元,用于基于相同位置块的运动矢量来确定当前块是否是运动块; 运动矢量决定单元,用于根据确定的结果来决定当前块的运动矢量; 以及分辨率转换单元,用于转换相同位置块的运动矢量的分辨率。 根据本发明,在每个图像区域或每个运动矢量中确定运动矢量分辨率。 通过使用具有相对于图像自适应地决定的运动矢量分辨率的运动矢量来执行帧间预测编码或解码。 另外,本发明能够通过在图像的预定区域单位中自适应地改变运动矢量分辨率并执行图像的帧间预测编码来实现高效编码。
    • 47. 发明申请
    • METHOD AND APPARATUS FOR INTRA-PREDICTION ENCODING/DECODING
    • 用于预测编码/解码的方法和装置
    • WO2011021910A2
    • 2011-02-24
    • PCT/KR2010005567
    • 2010-08-21
    • SK TELECOM CO LTDKIM SUNYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOOKIM DAEYEONLIM JEONGYEON
    • KIM SUNYEONLEE YUNGLYULMOON JOOHEEKIM HAEKWANGJEON BYEUNGWOOKIM DAEYEONLIM JEONGYEON
    • H04N7/32
    • H04N19/11H04N19/61H04N19/70
    • The present invention relates to a method and an apparatus for intra-prediction encoding/decoding. The present invention provides an image encoding method comprising the steps of: selecting an intra prediction mode of each block to be encoded in an input image as a predetermined intra prediction mode or an intra prediction mode according to a predetermined mode decision method; generating a coefficient bit by encoding a residual block generated through the intra prediction of each block according to the selected intra prediction mode; generating a mode bit by encoding a mode identifier indicating the intra prediction mode according to the predetermined mode decision method; generating a bit stream including a mode bit field having the mode bit for one or more block and a coefficient bit field having the coefficient bit for each block; and inserting a mod bit field identifier for identifying the mode bit field into the bit stream. The present invention can improve a compression speed by simplifying a prediction mode selection process for compressing the image and can improve the compression efficiency by reducing the size of the compressed data.
    • 本发明涉及用于帧内预测编码/解码的方法和装置。 本发明提供一种图像编码方法,包括以下步骤:根据预定模式决定方法,将输入图像中要编码的每个块的帧内预测模式选择为预定帧内预测模式或帧内预测模式; 通过根据所选择的帧内预测模式对通过每个块的帧内预测生成的残差块进行编码来生成系数比特; 通过根据预定模式决定方法对表示帧内预测模式的模式标识符进行编码来生成模式比特; 产生包括具有一个或多个块的模式位的模式位字段和具有每个块的系数位的系数位字段的位流; 以及将用于将模式位字段识别为位流的mod位字段标识符插入。 本发明可以通过简化用于压缩图像的预测模式选择处理来提高压缩速度,并且可以通过减小压缩数据的大小来提高压缩效率。