• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Visual Quality Optimization for Privacy Protection Bar-based Secure Image Display Technique

Vol. 11, No.7, July 31, 2017
10.3837/tiis.2017.07.020, Download Paper (Free):

Abstract

Abrupt scene changes generally incur the afterimage effect. So, the unblocked image portion is still viewed by human eyes just after it is blocked by some pattern. Yovo’s secure display method utilized this phenomenon and it is systematically analyzed using computational afterimage modeling by replacing the complex afterimage effect via simple low-pass filtering. With this approach, realistic images perceived by the human eye can be computationally generated at every single moment, especially reflecting the afterimage effect. The generated images are compared with the original images to determine the factors that affect the image quality of the secure display method. The simulation results demonstrate that the ratio of the unblocked portion to the blocked portion of an image and the playback rate are two primary factors related to the recognized image quality. We also found that the two factors are still effective for generalized secure display techniques


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Cite this article

[IEEE Style]
Sanghyun Park and Sang-ug Kang, "Visual Quality Optimization for Privacy Protection Bar-based Secure Image Display Technique," KSII Transactions on Internet and Information Systems, vol. 11, no. 7, pp. 3664-3677, 2017. DOI: 10.3837/tiis.2017.07.020

[ACM Style]
Park, S. and Kang, S. 2017. Visual Quality Optimization for Privacy Protection Bar-based Secure Image Display Technique. KSII Transactions on Internet and Information Systems, 11, 7, (2017), 3664-3677. DOI: 10.3837/tiis.2017.07.020