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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：知行书院执行院长
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：信息与通信工程学院
学科：信号与信息处理
办公地点：大连理工大学创新园大厦A525
联系方式：http://www.aisdut.cn/WangBo/index.html
电子邮箱：bowang@dlut.edu.cn
Double compression detection based on Markov model of the first digits of DCT coefficients
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论文类型：会议论文
发表时间：2011-08-12
收录刊物：EI、Scopus
页面范围：234-237
摘要：Double compression usually occurs after the image has gone through some kinds of tampering, so double compression detection is a basic mean to assess the authenticity of a given image. In this paper, we propose to model the distribution of the mode based first digits of DCT (Discrete Cosine Transform) coefficients using Markov transition probability matrix and utilize its stationary distribution as features for double compression detection. Experiment results show the effectiveness of the proposed method and comparison has been made to show the improvement by using this second order statistical model. ? 2011 IEEE.