| 한글제목(Korean Title) |
Visual Quality Optimization for Privacy Protection Bar-based Secure Image Display Technique |
| 영문제목(English Title) |
Visual Quality Optimization for Privacy Protection Bar-based Secure Image Display Technique |
| 저자(Author) |
Sanghyun Park
Sang-ug Kang
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| 원문수록처(Citation) |
VOL 11 NO. 07 PP. 3664 ~ 3677 (2017. 07) |
한글내용
(Korean Abstract) |
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영문내용
(English 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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| 키워드(Keyword) |
capture prevention
analog hole
secure image display
afterimage
privacy
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| 파일첨부 |
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