公开(公告)号：US08160368B2

公开(公告)日：2012-04-17

申请号：US12376059

申请日：2007-02-02

申请人： Yoshimasa Nakamura ,  Masashi Iwasaki ,  Masahiko Obata ,  Koichi Kondo ,  Shohei Sasada

发明人： Yoshimasa Nakamura ,  Masashi Iwasaki ,  Masahiko Obata ,  Koichi Kondo ,  Shohei Sasada

IPC分类号： G06K9/56 ,  G06K9/46 ,  G06K9/36

CPC分类号： H04N19/90 ,  H04N19/63

摘要： The image feature extraction method of the present invention includes: the step of performing k2 dividing process at least once on a given image so as to convert the given image into a multi-divided image, where the k2 dividing process comprises the steps of: a) creating matrix T based on image matrix X; b) computing singular values of the matrix T; c) determining whether or not minj|σj−σj−1|>ε; d) if the result of the determination in the step c) is “No”, returning to the step c) subsequent to computing the singular values of the enlarged matrix Tα; e) if the result of the determination in the step c) is “Yes”, obtaining U which satisfies T=USVT; f) obtaining matrix T1=UTT; and g) creating image matrix X1 based on matrix T1.

摘要翻译： 本发明的图像特征提取方法包括：在给定图像上进行k2分割处理至少一次以便将给定图像转换为多分割图像的步骤，其中k2分割处理包括以下步骤：a ）基于图像矩阵X创建矩阵T; b）计算矩阵T的奇异值; c）确定是否minj |＆sgr; j-＆sgr; j-1 |>＆egr ;; d）如果步骤c）中的确定结果为“否”，则在计算放大矩阵Tα的奇异值之后返回到步骤c）; e）如果步骤c）中的确定结果为“是”，则获得满足T = USVT的U; f）获得矩阵T1 = UTT; 并且g）基于矩阵T1创建图像矩阵X1。

公开(公告)号：US20090324064A1

公开(公告)日：2009-12-31

申请号：US12376059

申请日：2007-02-02

申请人： Yoshimasa Nakamura ,  Masashi Iwasaki ,  Masahiko Obata ,  Koichi Kondo ,  Shohei Sasada

发明人： Yoshimasa Nakamura ,  Masashi Iwasaki ,  Masahiko Obata ,  Koichi Kondo ,  Shohei Sasada

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： H04N19/90 ,  H04N19/63

摘要： The image feature extraction method of the present invention includes: the step of performing k2 dividing process at least once on a given image so as to convert the given image into a multi-divided image, where the k2 dividing process comprises the steps of: a) creating matrix T based on image matrix X; b) computing singular values of the matrix T; c) determining whether or not minj|σj−σj−1|>ε; d) if the result of the determination in the step c) is “No”, returning to the step c) subsequent to computing the singular values of the enlarged matrix Tα; e) if the result of the determination in the step c) is “Yes”, obtaining U which satisfies T=USVT; f) obtaining matrix T1=UTT; and g) creating image matrix X1 based on matrix T1.

摘要翻译： 本发明的图像特征提取方法包括：在给定图像上进行k2分割处理至少一次以便将给定图像转换为多分割图像的步骤，其中k2分割处理包括以下步骤：a ）基于图像矩阵X创建矩阵T; b）计算矩阵T的奇异值; c）确定minj | sigmaj-sigmaj-1 |> epsilon; d）如果步骤c）中的确定结果为“否”，则在计算放大矩阵Talpha的奇异值之后返回到步骤c） e）如果步骤c）中的确定结果为“是”，则获得满足T = USVT的U; f）获得矩阵T1 = UTT; 并且g）基于矩阵T1创建图像矩阵X1。