基于面积比一致性的图像拼接篡改检测  

Image Splicing Detection Based on Area Ratio Consistency

作　　者：盈盈 

机构地区：[1]上海大学通信与信息工程学院

出　　处：《工业控制计算机》2019年第10期103-104,107,共3页Industrial Control Computer

摘　　要：提出一种基于面积比一致性的图像拼接篡改检测。利用仿射不变量——区域面积比反映平面物体的几何形变,分别在矫正图像和正投影图像上提取物体轮廓的交比谱,采用动态时间规整算法匹配形状,估计局部区域面积比。最后,定义度量误差,根据面积比一致性鉴定拼接图像。实验结果表明,该算法能够检测平面透视一致性,实现图像真实性取证。This paper proposes an image splicing detection method based on area ratio consistency.Affine invariant-region area ratio are used to reflect geometric deformation of planar objects,and extract cross ratio spectrum based on edges both in rectified image and in frontal view image.Dynamic time warping algorithm are applied to match object shapes and area ratio of local regions are estimated.Finally,this paper defines measurement error and detect splicing image through area ratio consistency.

关 键 词：图像取证 拼接检测 仿射不变量 平面透视 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]