基于三阶差分预滤波和循环谱分析的JPEG图像旋转角度估计

doi:10.3969/j.issn.0255-8297.2022.05.011

应用科学学报 ›› 2022, Vol. 40 ›› Issue (5): 820-827.doi: 10.3969/j.issn.0255-8297.2022.05.011

基于三阶差分预滤波和循环谱分析的JPEG图像旋转角度估计

宋忠豪, 姚恒

上海理工大学光电信息与计算机工程学院, 上海 200093

收稿日期:2021-06-09 出版日期:2022-09-30 发布日期:2022-09-30
通信作者: 姚恒,副教授,研究方向为多媒体信息安全。E-mail:hyao@usst.edu.cn E-mail:hyao@usst.edu.cn
基金资助:
国家自然科学基金（No.62172281，No.61702332）资助

Image Rotation Angle Estimation on JPEG Compressed Images via Third-order Differential Prefiltering Operation and Cyclostationarity Analysis

SONG Zhonghao, YAO Heng

School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2021-06-09 Online:2022-09-30 Published:2022-09-30

摘要/Abstract

摘要： 为了提高JPEG图像旋转角度估计的准确率，本文提出一种结合预滤波和循环谱分析的JPEG图像旋转角度估计方法。首先，对差分滤波后的待检测图像进行循环谱分析，其图像信号具有循环周期性；然后，设计预滤波器减小JPEG块效应对图像频谱的影响；最后，根据得到的旋转特征峰的位置估计出旋转角度。实验结果表明，所提算法对旋转角度估计的准确率优于现有算法。

关键词: 图像取证, 重采样检测, 旋转角度估计, 循环平稳性

Abstract: In this paper, we propose to estimate the rotation angle of JPEG compressed image based on prefilter and cyclic spectral analysis in order to improve detection performance. We first mathematically show the cyclostationarity of differentially filtered images. And then we design a prefilter to reduce the effect of JPEG block artifacts on the image spectrum, further improving the detection ability. At last, the rotation angle is estimated based on the locations of characteristic peaks. Experimental results demonstrate that the proposed detection method outperforms some state-of-the-art methods.

Key words: digital image forensics, resampling detection, rotation angle estimation, cyclostationarity

中图分类号:

TP309.2

宋忠豪, 姚恒. 基于三阶差分预滤波和循环谱分析的JPEG图像旋转角度估计[J]. 应用科学学报, 2022, 40(5): 820-827.

SONG Zhonghao, YAO Heng. Image Rotation Angle Estimation on JPEG Compressed Images via Third-order Differential Prefiltering Operation and Cyclostationarity Analysis[J]. Journal of Applied Sciences, 2022, 40(5): 820-827.

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基于三阶差分预滤波和循环谱分析的JPEG图像旋转角度估计

Image Rotation Angle Estimation on JPEG Compressed Images via Third-order Differential Prefiltering Operation and Cyclostationarity Analysis

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