基于弹载遥测图像加密域的可逆信息隐藏算法  

Reversible Data Hiding Algorithm Based on Encryption Domain of Missile Telemetry Image

作　　者：张伟 宋畅 洪文鹏 毕盛 卫俊杰 ZHANG Wei;SONG Chang;HONG Wenpeng;BI Sheng;WEI Junjie(The Third Military Representative Office in Nanjing Military Representative Bureau of the CPLA Land Force Equipment Department in Shanghai,Shanghai 201109;Shanghai Aerospace Control Technology Institute,Shanghai 201109)

机构地区：[1]陆军装备部驻南京地区军代局驻上海地区第三军代室,上海201109 [2]上海航天控制技术研究所,上海201109

出　　处：《飞控与探测》2021年第6期38-44,共7页Flight Control & Detection

摘　　要：针对弹载红外遥测数据下传带宽受限和图像接收端内容受损的问题,基于对称加密系统与差值直方图平移算法,提出了加密域可逆信息隐藏算法与红外遥测图像相结合的方案。一方面可以将弹载遥测数据嵌入到红外遥测图像中;另一方面可以对红外遥测图像进行图像加密,以保证传输过程中图像内容的安全性。在图像接收端,通过与图像发送端相同的加密密钥与嵌入方案,进行图像的无损恢复与嵌入信息的可逆提取。实验结果表明:对于位深度为16,尺寸为128×128的红外遥测图像,利用图像冗余空间可嵌入15000bit左右的二进制数据,且保证了遥测图像与遥测数据的可逆恢复。Aiming at the problem of limited downloading bandwidth missile infrared telemetry data and damage to the content of image in the receiving end,this paper proposes a scheme combining a reversible data hiding algorithm with infrared telemetry images,based on the symmetric encryption system and the difference histogram translation algorithm.On the one hand,the various auxiliary information of missile infrared telemetry data can be embedded into the image;on the other hand,the infrared telemetry image can be encrypted to ensure the security of the image content during transmission.At the image receiving end,through the same encryption key and embedding scheme as the image sending end,the lossless recovery of the image and the reversible extraction of embedded information are performed.The experimental results show that for the infrared telemetry image with a bit depth of 16 and a size of 128×128,the image redundancy space can be used to embed about 15000 bits of binary data,and the reversible recovery of the telemetry image and embedded data is guaranteed.

关 键 词：红外遥测图像 传输带宽 图像加密 可逆信息隐藏 差值直方图 

分 类 号：TN911.73[电子电信—通信与信息系统]