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http://dx.doi.org/10.6109/jkiice.2017.21.9.1703

3D Point Clouds Encryption Method and Analysis of Encryption Ratio in Holographic Reconstruction Image  

Choi, Hyun-Jun (Department of Electronic Engineering, Mokpo Maritime University)
Seo, Young-Ho (Ingenium College of Liberal Arts, Kwangwoon University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.9, 2017 , pp. 1703-1710 More about this Journal
Abstract
This paper propose a 3D point clouds (depth) security technique for digital holographic display service. Image contents encryption is a method to provide only authorized right owners with the original image information by encrypting the entire image or a part of the image. The proposed method detected an edge from a depth and performed quad tree decomposition, and then performed encryption. And encrypts the most significant block among the divided blocks. The encryption effect was evaluated numerically and visually. The experimental results showed that encrypting only 0.43% of the entire data was enough to hide the constants of the original depth. By analyzing the encryption amount and the visual characteristics, we verified a relationship between the threshold for detecting an edge-map. As the threshold for detecting an edge increased, the encryption ratio decreased with respect to the encryption amount.
Keywords
Contents security; Digital hologram; Encryption; 3D point cloud;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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