公开(公告)号：US20060023962A1

公开(公告)日：2006-02-02

申请号：US11043920

申请日：2005-01-28

申请人： Yin-Tsung Hwang ,  Kuei-Hung Cheng ,  Shi-Shen Wang ,  Sung-Bo Chen ,  Guo-Zua Wu

发明人： Yin-Tsung Hwang ,  Kuei-Hung Cheng ,  Shi-Shen Wang ,  Sung-Bo Chen ,  Guo-Zua Wu

IPC分类号： G06K9/46 ,  G06K9/36

CPC分类号： G06T9/20 ,  H04N19/647

摘要： A method for encoding images according to object shapes is provided. The method enables reduced usage of storage space when an image encoding system encodes a received image frame. The method uses a bottom-up and sequential approach for encoding coefficients. The coefficients in each subband are numbered using a tree structure, wherein level N subband is designated as a root of the whole tree, level (N−1) subbands are designated as roots of subtrees, and level (N=1) subbands are designated as terminal nodes of subtrees. The terminal nodes for one of the subtrees are numbered first, and then this subtree is numbered in the bottom-up sequence. After that, the terminal nodes for another substree are numbered, and this numbering sequence continues to number all the other subtrees until the root of the tree has been numbered, so as to allow a bottom-up encoding process for the coefficient to be performed.

摘要翻译： 提供了一种根据对象形状编码图像的方法。 当图像编码系统对接收的图像帧进行编码时，该方法能够减少存储空间的使用。 该方法使用自下而上和顺序的方法来编码系数。 使用树结构对每个子带中的系数进行编号，其中将N级子带指定为全树的根，级（N-1）个子带被指定为子树的根，并且指定级（N = 1）个子带 作为子树的终端节点。 子树之一的终端节点首先编号，然后该子树以自下而上的顺序编号。 之后，对于另一子模块的终端节点进行编号，并且该编号序列继续对所有其他子树进行编号，直到树的根被编号，以便允许执行系数的自底向上编码处理。

公开(公告)号：US07565023B2

公开(公告)日：2009-07-21

申请号：US11043920

申请日：2005-01-28

申请人： Yin-Tsung Hwang ,  Kuei-Hung Cheng ,  Shi-Shen Wang ,  Sung-Bo Chen ,  Guo-Zua Wu

发明人： Yin-Tsung Hwang ,  Kuei-Hung Cheng ,  Shi-Shen Wang ,  Sung-Bo Chen ,  Guo-Zua Wu

IPC分类号： G06K9/46

CPC分类号： G06T9/20 ,  H04N19/647

摘要： A method for encoding images according to object shapes is provided. The method enables reduced usage of storage space when an image encoding system encodes a received image frame. The method uses a bottom-up and sequential approach for encoding coefficients. The coefficients in each subband are numbered using a tree structure, wherein level N subband is designated as a root of the whole tree, level (N-1) subbands are designated as roots of subtrees, and level (N=1) subbands are designated as terminal nodes of subtrees. The terminal nodes for one of the subtrees are numbered first, and then this subtree is numbered in the bottom-up sequence. After that, the terminal nodes for another subtree are numbered, and this numbering sequence continues to number all the other subtrees until the root of the tree has been numbered, so as to allow a bottom-up encoding process for the coefficient to be performed.

摘要翻译： 提供了一种根据对象形状编码图像的方法。 当图像编码系统对接收的图像帧进行编码时，该方法能够减少存储空间的使用。 该方法使用自下而上和顺序的方法来编码系数。 使用树结构对每个子带中的系数进行编号，其中将N级子带指定为全树的根，级（N-1）个子带被指定为子树的根，并且指定级（N = 1）个子带 作为子树的终端节点。 子树之一的终端节点首先编号，然后该子树以自下而上的顺序编号。 之后，对于另一个子树的终端节点进行编号，并且该编号序列继续对所有其他子树进行编号，直到树的根被编号，以便允许执行系数的自底向上编码处理。