摘要
阐述相机中可以用作相机指纹的PRNU噪声,通过一台相机拍摄多张照片,对PRNU噪声进行最大似然估计,再利用峰值相关能量比计算待检验图像与特定相机设备的相关性。
This paper describes the PRNU noise that can be used as the fingerprint of the camera in the camera.The PRNU noise is estimated by maximum likelihood by taking multiple photos with one camera,and then the correlation between the image to be tested and the specific camera equipment is calculated by using the peak correlation energy ratio.
作者
李文
李俊瑶
侯欣雨
吴彦钰
LI Wen;LI Junyao;HOU Xinyu;WU Yanyu(Jiangsu Police Officer College,Jiangsu 210000,China;Material Evidence ldentification Center of the Ministry of Public Security,Beijing 100032,China)
出处
《电子技术（上海）》
2022年第6期150-151,共2页
Electronic Technology
基金
中央级公益性科研院所基本科研业务费项目(2021JB017)
江苏省高校自然科学研究项目(19KJD510002)
江苏警官学院大学生创新创业训练计划项目(XJ2020008)。
关键词
PRNU噪声
似然估计
相关性判定
PRNU noise
likelihood estimation
correlation determination
