Position Determines Perspective: Investigating Perspective Distortion for Image Forensics of Faces
文献类型：会议论文
| 作者 | Peng, Bo1,3 ; Wang, Wei1,2; Dong, Jing1,4; Tan, Tieniu1; Wei Wang
|
| 出版日期 | 2017 |
| 会议日期 | 21-26 July 2017 |
| 会议地点 | Honolulu, HI, USA |
| 关键词 | Image Forensics Perspective Distortion Camera Intrinsic Parameters |
| 页码 | 1813-1821 |
| 英文摘要 | This paper points out a new telltale trace - the characteristic of perspective distortion (CPD), for the image forensics of faces. The perspective distortion is determined by the position of image shooting, and it is often overlooked when creating a forgery, which results in the inconsistency between the claimed camera parameters and the CPD in the face image. To investigate this consistency problem, we cast it to the consistency between the claimed camera intrinsic parameters and the estimated ones from the CPD. Our parameter estimation approach is based on geometric observations that are related to CPD, like facial landmarks and contours. We analyze the estimation uncertainty caused by indeterminacy of observation to obtain a more reliable forensic decision. Experiments on synthetic datasets and real forgery examples demonstrate the effectiveness of the proposed method. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/15403]  |
| 专题 | 自动化研究所_智能感知与计算研究中心 |
| 通讯作者 | Wei Wang |
| 作者单位 | 1.Chinese Acad Sci, Natl Lab Pattern Recognit, Ctr Res Intelligent Percept & Comp, Inst Automat, Beijing 100190, Peoples R China 2.State Key Lab Cryptol, Beijing 100878, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Informat Engn, State Key Lab Informat Secur, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Bo,Wang, Wei,Dong, Jing,et al. Position Determines Perspective: Investigating Perspective Distortion for Image Forensics of Faces[C]. 见:. Honolulu, HI, USA. 21-26 July 2017. |
入库方式： OAI收割
来源：自动化研究所
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