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http://dx.doi.org/10.5909/JBE.2020.25.2.151

Watermark Extraction Method of Omnidirectional Images Using CNN  

Moon, Won-Jun (Department of Electronic Materials Engineering, Kwangwoon University)
Seo, Young-Ho (Department of Electronic Materials Engineering, Kwangwoon University)
Kim, Dong-Wook (Department of Electronic Materials Engineering, Kwangwoon University)
Publication Information
Journal of Broadcast Engineering / v.25, no.2, 2020 , pp. 151-156 More about this Journal
Abstract
In this paper, we propose a watermark extraction method of omnidirectional images using CNN (Convolutional Neural Network) to improve the extracted watermark accuracy of the previous deterministic method that based on algorithm. This CNN consists of a restoration process of extracting watermarks by correcting distortion during omnidirectional image generation and/or malicious attacks, and a classification process of classifying which watermarks are extracted watermarks. Experiments with various attacks confirm that the extracted watermarks are more accurate than the previous methods.
Keywords
virtual reality; watermark; CNN; omnidirectional image;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Youtube Virtual-Reality Channel.. Available : https://www.youtube.com/channel/UCzuqhhs6NWbgTzMuM09WKDQ
2 MPEG-I, Information Technology-Coded Representation of Immersive Media (MPEG-I)-Part 2: Omnidirectional Media Format, document N17563, SO/IEC FDIS 23090-2:201x, ISO/IEC JTC1 SC29/WG11 MPEG, 122nd Meeting, San Diego, USA, Apr., 2018
3 I. S. Kang, W. J. Moon, Y. H. Seo, and D. W. Kim, "Distortion in VR 360 degree panoramic image," Summer conference on the KIBME, Jeju, Korea, pp.194-196, June, 2017
4 W. J. Moon, Y. H. Seo, and D. W. Kim, "SIFT Feature Based Digital Watermarking Method for VR Image," Journal of Broadcast Engineering, Vol.24, No. 6, Nov., 2019
5 D. G. Lowe, "Distinctive Image Features from Scale-Invariant Keypoints," International Journal of Computer Vision, Vol. 60, No. 2, pp. 91-110, Jan., 2004   DOI