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    • 1. 发明申请
    • VIDEO SCRAMBLING THROUGH RELOCATION OF PIXEL BLOCKS
    • 通过像素块的转换进行视频屏蔽
    • WO2008099271A8
    • 2009-10-08
    • PCT/IB2008000334
    • 2008-02-14
    • PHOTINT VENTURE GROUP INCJACOB STEPHANE JEAN-LOUIS
    • JACOB STEPHANE JEAN-LOUIS
    • H04N7/167
    • H04L9/3247H04L2209/24H04L2209/601H04N7/1675H04N21/2347H04N21/2351
    • A method and system for scrambling visual information are, described. An image, preferably in an incompressed format, is divided in to n number of patterns having a different aspect ratio. Each pattern is mapped on a matrix i.e positioned on X and Y-axis. The patterns are then arranged in a different and new shape for e.g. a rectangle, preferably, fitting the size of manoblocks in a MPEG video, to that of the original shape of the image but having the same number of patterns or same area. The patterns of pixels are then relocated in the new shape and a matrix is again mapped for the new arrangement of patterns. A key is then generated comprising the information of the encrypted and earlier image. The player decrypts the encrypted visual content or image by means of the information provided by the key.
    • 描述了用于加扰视觉信息的方法和系统。 优选地以非压缩格式的图像被划分为具有不同纵横比的n个图案。 每个图案被映射在矩阵上,即位于X和Y轴上。 然后将图案以不同的和新的形状排列,例如, 优选地,将MPEG视频中的人造板块的尺寸拟合为图像的原始形状但具有相同数量的图案或相同面积的矩形。 然后将像素的图案重新定位在新形状中,并且再次映射矩阵用于新的图案排列。 然后产生包括加密和较早图像的信息的密钥。 玩家通过密钥提供的信息解密加密的视觉内容或图像。
    • 5. 发明申请
    • VIDEO SCRAMBLING THROUGH RELOCATION OF PIXEL BLOCKS
    • 通过像素块的转换进行视频屏蔽
    • WO2008099271A3
    • 2008-10-09
    • PCT/IB2008000334
    • 2008-02-14
    • PHOTINT VENTURE GROUP INCJACOB STEPHANE JEAN-LOUIS
    • JACOB STEPHANE JEAN-LOUIS
    • H04N7/167
    • H04L9/3247H04L2209/24H04L2209/601H04N7/1675H04N21/2347H04N21/2351
    • A method and system for scrambling visual information are, described. An image, preferably in an incompressed format, is divided in to n number of patterns having a different aspect ratio. Each pattern is mapped on a matrix i.e positioned on X and Y-axis. The patterns are then arranged in a different and new shape for e.g. a rectangle, preferably, fitting the size of manoblocks in a MPEG video, to that of the original shape of the image but having the same number of patterns or same area. The patterns of pixels are then relocated in the new shape and a matrix is again mapped for the new arrangement of patterns. A key is then generated comprising the information of the encrypted and earlier image. The player decrypts the encrypted visual content or image by means of the information provided by the key.
    • 描述了用于加扰视觉信息的方法和系统。 优选以非压缩格式的图像被划分为具有不同纵横比的n个图案。 每个图案被映射在矩阵上,即位于X和Y轴上。 然后将图案以不同的和新的形状排列,例如, 优选地,将MPEG视频中的人造板块的尺寸拟合为图像的原始形状但具有相同数量的图案或相同面积的矩形。 然后将像素的图案重新定位在新形状中,并且再次映射矩阵用于新的图案排列。 然后产生包括加密和较早图像的信息的密钥。 玩家通过密钥提供的信息解密加密的视觉内容或图像。