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针对索引图像的人脸区域分级加密算法
  • 期刊名称：电子学报. 2009.
  • 时间：0
  • 分类：TP309.2[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]哈尔滨工业大学计算机科学与技术学院,黑龙江哈尔滨150001
  • 相关基金：国家自然科学基金（No.60832010,No.60671064,No.60703011）;国家863高技术研究发展计划（No.2007AA01Z458）;高等学校博士学科专项科研基金（No.20070213047）
  • 相关项目：数字图像图形可逆信息伪装技术研究
关键词： 分级加密, 索引图像, 感兴趣区域, 感知信息, hierarchical encryption, palette image, region of interest, perceptual information
中文摘要：

人脸是一种典型的图像感兴趣区域,面向视觉感知的分级人脸区域图像加密增强了图像加密的针对性和灵活性.本文针对索引图像的特点,提出了一种基于颜色索引表加密和空间位置加密的人脸区域分级图像加密算法.通过不同的密钥对颜色索引表和图像矩阵分别加密,实现了对索引图像人脸区域的两级加密.第一级加密后保留了少量图像中人脸的感知信息,可以用做快速查找和识别,第二级加密后的图像则不包含任何原图像的感知信息.进而结合公钥密码体制,构造了一个实用的两级加密图像安全传输方案.

英文摘要：

Face is a typical region of interest of image.The face region hierarchical encryption based on the vision perceptual enhances the pertinence and flexibility of image encryption.A novel face region encryption algorithm of palette image is proposed by involving the palette encrypting and pixels position encrypting.Different keys are used to encrypt the palette and the pixels position,and the hierarchical encryption of palette image is achieved.The first level（lightweight）encryption will keep part of the perceptual information of the original face region and could be used for fast identifying. The second level encryption will eliminate all the perceptual information and achieve a high level security. Further, by combining the public key cryptosystem, a two level secure image transmitting scheme is constructed.

同期刊论文项目
数字图像图形可逆信息伪装技术研究
期刊论文 20 会议论文 30
流媒体感知信息安全理论及关键问题研究
期刊论文 103 专利 18 著作 1
模糊生物信息HASH密码技术研究
期刊论文 21 会议论文 9
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