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首页> 外国专利> INFORMATION EMBEDDING METHOD TO POLYGON DATA, INFOMRATION DETECTING METHOD, INFORMATION EMBEDDING DEVICE TO POLYGON DATA, INFOMRATION DETECTING DEVICE, PROGRAM FOR INFOMRATION ENBEDDING TO POLYGON DATA, INFOMRATION DETECTING PROGRAM, STORAGE MEDIUM WITH PROGRAM FOR INFOMRATION EMBEDDING TO POLYGON DATA STORED THEREIN, AND STORAGE MEDIUM STORING INFORMATION DETECTING PROGRAM

INFORMATION EMBEDDING METHOD TO POLYGON DATA, INFOMRATION DETECTING METHOD, INFORMATION EMBEDDING DEVICE TO POLYGON DATA, INFOMRATION DETECTING DEVICE, PROGRAM FOR INFOMRATION ENBEDDING TO POLYGON DATA, INFOMRATION DETECTING PROGRAM, STORAGE MEDIUM WITH PROGRAM FOR INFOMRATION EMBEDDING TO POLYGON DATA STORED THEREIN, AND STORAGE MEDIUM STORING INFORMATION DETECTING PROGRAM

机译：面向多边形数据的信息嵌入方法，信息检测方法，面向多边形数据的信息嵌入设备，信息检测设备，面向多边形数据的信息嵌入程序，面向存储器的信息检测程序，用于存储存储介质的信息以及用于存储信息的程序的存储介质存储信息检测程序

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PROBLEM TO BE SOLVED: To eliminate the deterioration in quality of an original while keeping the characteristic of a conventional technique requiring no original in the detection of embedded information, and to provide resistance to an electronic watermark attack such as parallel movement of a coordinate system. SOLUTION: The differences in direction of the normal vector of a three-apex polygon and the average normal vector of a poly-apex polygon with a predetermined unit vector are changed according to embedding information, whereby embedding processing is performed. A detection processing for detecting information from the differences in direction of the normal vector of the three-apex polygon and the average normal vector of the poly-apex polygon with embedded information with the predetermined unit vector is performed.
机译：解决的问题：在保持嵌入信息的检测中不需要原件的传统技术的特征的同时，消除原件质量的下降，并提供对电子水印攻击（例如坐标系的平行移动）的抵抗力。解决方案：根据嵌入信息更改三顶点多边形的法向矢量和具有预定单位矢量的多边形顶点的平均法向矢量的方向差，从而执行嵌入处理。进行检测处理，以根据具有预定单位矢量的嵌入信息的三顶点多边形的法线向量和多顶点多边形的平均法线向量的方向的差异来检测信息。

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