PMID- 29690629 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20180503 LR - 20180518 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 18 IP - 4 DP - 2018 Apr 23 TI - Distinguishing Computer-Generated Graphics from Natural Images Based on Sensor Pattern Noise and Deep Learning. LID - 10.3390/s18041296 [doi] LID - 1296 AB - Computer-generated graphics (CGs) are images generated by computer software. The rapid development of computer graphics technologies has made it easier to generate photorealistic computer graphics, and these graphics are quite difficult to distinguish from natural images (NIs) with the naked eye. In this paper, we propose a method based on sensor pattern noise (SPN) and deep learning to distinguish CGs from NIs. Before being fed into our convolutional neural network (CNN)-based model, these images—CGs and NIs—are clipped into image patches. Furthermore, three high-pass filters (HPFs) are used to remove low-frequency signals, which represent the image content. These filters are also used to reveal the residual signal as well as SPN introduced by the digital camera device. Different from the traditional methods of distinguishing CGs from NIs, the proposed method utilizes a five-layer CNN to classify the input image patches. Based on the classification results of the image patches, we deploy a majority vote scheme to obtain the classification results for the full-size images. The experiments have demonstrated that (1) the proposed method with three HPFs can achieve better results than that with only one HPF or no HPF and that (2) the proposed method with three HPFs achieves 100% accuracy, although the NIs undergo a JPEG compression with a quality factor of 75. FAU - Yao, Ye AU - Yao Y AUID- ORCID: 0000-0002-7012-9307 AD - School of CyberSpace, Hangzhou Dianzi University, Hangzhou 310018, China. yyaoprivate@gmail.com. AD - Shenzhen Key Laboratory of Media Security, Shenzhen University, Shenzhen 518060, China. yyaoprivate@gmail.com. FAU - Hu, Weitong AU - Hu W AD - School of CyberSpace, Hangzhou Dianzi University, Hangzhou 310018, China. hwt@hdu.edu.cn. FAU - Zhang, Wei AU - Zhang W AD - School of Computer Science and Technology, Hangzhou Dianzi University, Hangzhou 310018, China. magherozhw@hdu.edu.cn. FAU - Wu, Ting AU - Wu T AD - School of CyberSpace, Hangzhou Dianzi University, Hangzhou 310018, China. wuting@hdu.edu.cn. FAU - Shi, Yun-Qing AU - Shi YQ AD - Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA. shi@njit.edu. LA - eng PT - Journal Article DEP - 20180423 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 PMC - PMC5948567 OTO - NOTNLM OT - computer-generated graphics OT - convolutional neural network OT - image forensics OT - natural images OT - sensor pattern noise COIS- The authors declare no conflict of interest. EDAT- 2018/04/25 06:00 MHDA- 2018/04/25 06:01 PMCR- 2018/04/01 CRDT- 2018/04/26 06:00 PHST- 2018/03/07 00:00 [received] PHST- 2018/04/19 00:00 [revised] PHST- 2018/04/20 00:00 [accepted] PHST- 2018/04/26 06:00 [entrez] PHST- 2018/04/25 06:00 [pubmed] PHST- 2018/04/25 06:01 [medline] PHST- 2018/04/01 00:00 [pmc-release] AID - s18041296 [pii] AID - sensors-18-01296 [pii] AID - 10.3390/s18041296 [doi] PST - epublish SO - Sensors (Basel). 2018 Apr 23;18(4):1296. doi: 10.3390/s18041296.