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    • 2. 发明公开
    • IMAGE-ENCODING METHOD AND A DEVICE THEREFOR, AND IMAGE-DECODING METHOD AND A DEVICE THEREFOR
    • 图像编码方法及其装置,和图像解码方法及其设备
    • EP2953368A1
    • 2015-12-09
    • EP15161498.9
    • 2009-06-03
    • Samsung Electronics Co., Ltd
    • Chen, JianleLee, Jae-ChoolLee, Sang-RaeCheon, Min-SuLee, Kyo-Hyuk
    • H04N19/70H04N19/129H04N19/174
    • H04N19/172H04N19/129H04N19/13H04N19/174H04N19/184H04N19/70H04N19/91
    • A method of decoding image data encoded in a predetermined subgroup is provided, the method comprising: determining one or more basic blocks hierarchically split from the predetermined subgroup; and decoding the one or more basic blocks according to a zigzag scan order; wherein the one or more basic blocks comprises a first basic block, a second basic block, a third basic block and a fourth basic block, wherein a top left pixel of the first basic block is located at (x0, y0), a top left pixel of the second basic block is located at (x0+S, y0), a top left pixel of the third basic block is located at (x0, y0+S), and a top left pixel of a fourth basic block is located at (x0+S, y0+S), wherein S is a size of the first basic block, wherein the zigzag scan order represents a decoding order from the first basic block, to the second basic block, to the third basic block, to the fourth basic block, and wherein the decoding the one or more basic blocks comprises:when the top left pixel of second basic block deviates from a boundary of the image data and the top left pixel of first basic block and the top left pixel of the third basic block remain within the boundary of the image data, decoding the third basic block after the decoding of the first basic block, without decoding the second basic block.
    • 提供了一种在预定的子组编码的解码图像数据的方法,所述方法包括:确定开采的一个或从预定的子组分层划分多个基本块; 和解码gemäßZ字形扫描顺序的一个或多个基本块; worin所述一个或多个基本块包括第一基本块,第二基本块中,第三基本块和第四基本块,worin第一基本块的左上像素位于(X0,Y0),左上 第二基本块的像素位于(x0 + S,Y0),所述第三基本块的左上像素位于(X0,Y0 + S),以及第四基本块的左上像素位于 (X0 + S,Y0 + S),worin S是尺寸的第一基本块的,worin Z字形扫描顺序darstellt从所述第一基本块中的解码顺序,到第二基本块,到第三基本块,对 第四基本块,并且worin所述一个或多个基本块的解码的步骤包括:当第二基本块的左上角的像素从图像数据的边界与第一基本块的左上像素和所述第三左上方像素叉开 基本块保持的图像数据的边界内,所述第一基本块的解码后的第三基本块进行解码,瓦特 ithout解码所述第二基本块。