【作者】 彭懋磊； 李垠； 吕筱；

【Author】 PENG Maolei;LI Yin;LYU Xiao;Hubei Key Laboratory of Earthquake Early Warning,Hubei Earthquake Agency;

【机构】 湖北省地震局(地震预警湖北省重点实验室)；

【摘要】 为有效加密含有空间态势的震后重建图谱信息,提出震后重建图谱信息主动加密方法。为保证图谱信息在加密时不被遗漏,采用基于光谱特征增强的图谱目标识别方法,识别全部目标信息;针对所识别的图谱目标信息,基于超混沌序列与移位密码,进行图谱信息加密,实现含有空间态势的震后重建图谱信息主动加密算法设计。实验结果表明,所有含有空间态势的震后重建图像的图谱信息皆被识别,应用所提方法加密后,图谱信息全部被隐藏,可保护图谱信息安全。更多还原

【Abstract】 In order to effectively encrypt the post earthquake reconstruction map information with spatial situation,an active encryption method based on spatial situation is proposed. In order to ensure that the spectral information will not be missed during encryption, the spectral feature enhancement based spectral target recognition method is used to identify all target information; for the identified spectral target information, based on hyperchaotic sequence and shift cipher, the spectrum information encryption is carried out to realize the active encryption algorithm design of post earthquake reconstruction map information with space situation. The experimental results show that all the spectral information of post earthquake reconstruction images with spatial situation are identified.After encryption by the proposed method, all the map information is hidden, which can protect the map information security.更多还原