公开(公告)号：EP2133853B1

公开(公告)日：2013-04-24

申请号：EP09003030.5

申请日：2009-03-03

申请人： Fujitsu Limited

发明人： Anan, Taizo ,  Nakagata, Shohei ,  Kuraki, Kensuke ,  Takahashi, Jun

IPC分类号： G09C5/00 ,  H04N1/44

CPC分类号： G09C5/00

公开(公告)号：EP2106119A2

公开(公告)日：2009-09-30

申请号：EP09003519.7

申请日：2009-03-11

申请人： Fujitsu Limited

发明人： Nakagata, Shohei ,  Anan, Taizo ,  Kuraki, Kensuke ,  Takahashi, Jun

IPC分类号： H04N1/44

CPC分类号： H04N1/44 ,  H04N1/4486

摘要： In an image encryption apparatus, each of pixel-value inverse-converters applies pixel-value inverse-conversion on an input image in each of previously-encrypted areas. An image combiner superimposes images with inversely-converted pixels in the previously-encrypted areas to the input image to obtain a ready-to-encrypt image. An image encryptor scrambles blocks in the ready-to-encrypt image. A pixel-value converter applies pixel-value conversion on each of scrambled blocks to obtain a multiply-encrypted image. In an image decryption apparatus, a pixel-value inverse-converter applies pixel-value inverse-conversion on each scrambled block in the multiply-encrypted image to obtain a dot-erased image. An image decryptor inversely scrambles the scrambled blocks in the dot-erased image to obtain a decrypted image. Each of pixel-value converters applies pixel-value conversion on the decrypted image in each of previously-encrypted areas. An image combiner superimposes images with converted pixels in the previously-encrypted areas to the decrypted image to obtain a previously-encrypted image.

摘要翻译： 在图像加密装置中，每个像素值逆变换器对每个先前加密的区域中的输入图像应用像素值逆变换。 图像组合器将先前加密的区域中的逆转换像素的图像与输入图像叠加以获得准备加密的图像。 图像加密器加密准备加密的图像中的块。 像素值转换器对每个加扰块应用像素值转换以获得加密图像。 在图像解密装置中，像素值逆变换器对乘法加密图像中的每个加扰块应用像素值逆变换以获得点删除图像。 图像解密器对点删除图像中的加扰块进行反相扰频，以获得解密的图像。 每个像素值转换器对先前加密的每个区域中的解密图像应用像素值转换。 图像组合器将先前加密区域中的转换像素的图像与解密图像叠加，以获得预先加密的图像。

公开(公告)号：EP2093995A1

公开(公告)日：2009-08-26

申请号：EP08022044.5

申请日：2008-12-18

申请人： Fujitsu Limited

发明人： Nakagata, Shohei ,  Anan, Taizo ,  Kuraki, Kensuke ,  Takahashi, Jun

IPC分类号： H04N1/44

CPC分类号： H04N1/4486 ,  G09C5/00 ,  H04L9/088 ,  H04N1/4413 ,  H04N1/4426

摘要： Area data indicating an encryption area of image data and level data indicating an authority level for the encryption area are received. Upon being triggered by an input password, an encryption key is generated for each received authority level. Check data to be detected in verifying whether or not the encrypted image data in the encryption area is appropriately decrypted through decryption is implanted in the encryption area. Image encryption is performed on the encryption area where the check data is implanted, by using the encryption key corresponding to the authority level designated for the encryption area. In decryption, all decryption keys corresponding to all authority levels lower than or equal to the set authority level are used to decrypt each encryption area and determines whether or not an appropriate decryption has been performed on the basis of the result of the detection of the check data.

摘要翻译： 接收指示图像数据的加密区域的区域数据和指示加密区域的权限级别的级别数据。 在被输入密码触发后，为每个接收到的权限级别生成加密密钥。 在验证加密区域中的加密图像数据是否通过解密被适当解密的情况下检查要检测的数据被植入到加密区域中。 通过使用与为加密区域指定的权限级别对应的加密密钥，在植入了检查数据的加密区域上执行图像加密。 在解密中，对应于低于或等于所设置的权限级别的所有权限级别的所有解密密钥被用于解密每个加密区域，并且基于检查的检查结果来确定是否已经执行了适当的解密 数据。

公开(公告)号：EP0203002A3

公开(公告)日：1989-02-01

申请号：EP86401026.9

申请日：1986-05-13

申请人： FUJITSU LIMITED

发明人： Takahashi, Jun ,  Fukushima, Shigeru ,  Narumi, Toshikatu ,  Itoh, Ken-ichi ,  Ogawa, Seiya

IPC分类号： G11B5/845

CPC分类号： G11B5/708 ,  G11B5/70 ,  G11B5/70652 ,  G11B5/70678 ,  G11B5/714 ,  G11B5/845 ,  Y10S428/90 ,  Y10T428/25

摘要： A longitudinal magnetic coated recording medium comprises at least plane magnetic particles (4) each having an easy magnetization axis perpendicular to the major surface thereof, preferably mixed with other particles (6), and dispersed in a magnetic film (7) formed on a nonmagnetic substrate (8), having a orientation angle 0 of -30° to + 30°. A process for producing such a recording medium comprises the step of orienting the plane magnetic particles by applying at least a magnetic field approximately in parallel to the surface of the magnetic film.

公开(公告)号：EP2388761A3

公开(公告)日：2014-12-17

申请号：EP11152876.6

申请日：2011-02-01

申请人： Fujitsu Limited

发明人： Nakagata, Shohei ,  Kuraki, Kensuke ,  Takahashi, Jun ,  Anan, Taizo

IPC分类号： G09C5/00 ,  H04N1/44

CPC分类号： G09C5/00 ,  H04N1/32352 ,  H04N1/4486

摘要： A marker placement device includes, a marker placement method decision section that decides, for every predetermined pitch from a starting edge of a side to an end edge of the side, a placement position of a marker for detecting a position within a rectangular image region, the placement position being along the side of the image region within an image. A marker adding section that adds the marker to the image according to the placement position decided is provided, where, when a gap shorter than the pitch remains between the end edge and the decided placement position closest to the end edge of the side, the marker placement method decision section decides a first marker placement position closest to the starting edge, and decides a subsequent marker placement position.

公开(公告)号：EP1906645A1

公开(公告)日：2008-04-02

申请号：EP07018936.0

申请日：2007-09-26

申请人： FUJITSU LIMITED

发明人： Takahashi, Jun ,  Kuraki, Kensuke ,  Anan, Taizo

IPC分类号： H04N1/32

CPC分类号： H04N1/32203 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0062 ,  G06T2201/0065 ,  H04N1/32208 ,  H04N1/32235 ,  H04N1/32288 ,  H04N1/32293 ,  H04N1/32304 ,  H04N1/3232

摘要： A figure pattern (113, 711) expressing information to be embedded (112, 713), or a position of an area in which the information to be embedded exists, is embedded in an area other than the background of image data (111, 601, 712, 1801), thereby generating image data embedded with a watermark (114, 602, 715, 1802) . Then, the figure pattern is detected from the generated image data embedded with the watermark, and embedded information expressed by the detected figure pattern or embedded information existing in an area at a position expressed by the detected figure pattern is detected.

摘要翻译： 表达信息的图形图案（113，711）将要被嵌入（112，713），或者其中要被嵌入的信息存在的区域，的位置被嵌入比图像数据（111，601的背景之外的区域 ，712，1801），从而生成嵌入有水印（114，602，715，1802）的图像数据。 然后，这个数字图案从嵌有水印的生成的图像数据检测到，并且检测由检测到的图形图案或区域在由检测到的图形图案表示的位置存在于嵌入信息中过表达的嵌入信息。

公开(公告)号：EP2388761B1

公开(公告)日：2018-09-05

申请号：EP11152876.6

申请日：2011-02-01

申请人： Fujitsu Limited

发明人： Nakagata, Shohei ,  Kuraki, Kensuke ,  Takahashi, Jun ,  Anan, Taizo

IPC分类号： H04N1/32 ,  H04N1/44 ,  G09C5/00

CPC分类号： G09C5/00 ,  H04N1/32352 ,  H04N1/4486

摘要： A marker placement device includes, a marker placement method decision section that decides, for every predetermined pitch from a starting edge of a side to an end edge of the side, a placement position of a marker for detecting a position within a rectangular image region, the placement position being along the side of the image region within an image. A marker adding section that adds the marker to the image according to the placement position decided is provided, where, when a gap shorter than the pitch remains between the end edge and the decided placement position closest to the end edge of the side, the marker placement method decision section decides a first marker placement position closest to the starting edge, and decides a subsequent marker placement position.

公开(公告)号：EP2199984B1

公开(公告)日：2017-03-01

申请号：EP09179212.7

申请日：2009-12-15

申请人： FUJITSU LIMITED

发明人： Kuraki, Kensuke ,  Nakagata, Shohei ,  Takahashi, Jun ,  Anan, Taizo

IPC分类号： G06T11/60 ,  G06K7/14 ,  G09C5/00

CPC分类号： G06T11/60 ,  G06K7/1439 ,  G09C5/00

公开(公告)号：EP2388761A2

公开(公告)日：2011-11-23

申请号：EP11152876.6

申请日：2011-02-01

申请人： Fujitsu Limited

发明人： Nakagata, Shohei ,  Kuraki, Kensuke ,  Takahashi, Jun ,  Anan, Taizo

IPC分类号： G09C5/00

CPC分类号： G09C5/00 ,  H04N1/32352 ,  H04N1/4486

摘要： A marker placement device includes, a marker placement method decision section that decides, for every predetermined pitch from a starting edge of a side to an end edge of the side, a placement position of a marker for detecting a position within a rectangular image region, the placement position being along the side of the image region within an image. A marker adding section that adds the marker to the image according to the placement position decided is provided, where, when a gap shorter than the pitch remains between the end edge and the decided placement position closest to the end edge of the side, the marker placement method decision section decides a first marker placement position closest to the starting edge, and decides a subsequent marker placement position.

摘要翻译： 甲标记放置装置，包括，一个标记放置方法判定部做决定，对于从侧面的起始边缘的每一个预定节距在侧的端缘中，用于检测的矩形图像区域内的位置的标记的放置位置， 放置位置沿图像区域的图像内的侧之中。 的标记添加部分没有添加标记以雅丁到所决定的放置位置的图像被提供，其中，当除了间距短的间隙保持在端缘与最靠近侧的端部边缘所决定的放置位置，所述标记之间 放置方法判定部最近决定的第一标记放置位置到起始边缘和决定后续标记放置位置。

公开(公告)号：EP2199984A2

公开(公告)日：2010-06-23

申请号：EP09179212.7

申请日：2009-12-15

申请人： FUJITSU LIMITED

发明人： Kuraki, Kensuke ,  Nakagata, Shohei ,  Takahashi, Jun ,  Anan, Taizo

IPC分类号： G06T11/60

CPC分类号： G06T11/60 ,  G06K7/1439 ,  G09C5/00

摘要： A marker attaching apparatus attaches to an image a positioning marker for detecting a specific area in the image, and includes: an area size detection unit (102-1) detecting a size of an area to which the positioning marker is attached; a marker adjustment unit (102-2) adjusting the positioning marker depending on the detected size of the area; and a marker attaching unit (102-3) attaching the adjusted positioning marker to the image.

摘要翻译： 标记附着装置将图像附着到用于检测图像中的特定区域的定位标记，并且包括：区域尺寸检测单元（102-1），其检测定位标记附着的区域的大小; 标记调整单元，根据检测到的区域大小来调整定位标记; 以及将调整后的定位标记附着到图像上的标记附着单元（102-3）。