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http://dx.doi.org/10.5909/JBE.2010.15.1.076

The effects of video quality by LED background image in the broadcasting lighting  

Kim, Yong-Kyu (Dept. of Broadcasting Technique, MBC Plus)
Kim, Kyung-Ho (Dept. of Content Production Support, Korea Creative Content Agency)
Lee, Seon-Hee (Dept. of Media Engineering, Seoul National Univ. of Tech.)
Choi, Seong-Jhin (Dept. of Media Engineering, Seoul National Univ. of Tech.)
Publication Information
Journal of Broadcast Engineering / v.15, no.1, 2010 , pp. 76-88 More about this Journal
Abstract
Recently, LED background image devices are used for the production of broadcasting programs. But the effective advantages of LED background image devices are not realized for good HD video quality because the correlations between lighting sources and LED background image devices are not analyzed yet. In this paper, we analyze the color change and light intensity that lighting sources and the light intensity ratio of LED background images influence on a subject, making use of equipments used in real broadcasting, and examine the correlations between HD video quality and the light intensity ratio of LED background images. As a result in this experiment, the video is most expressed having an 20[IRE] effect on a subject when the light intensity of LED background image is 6%. When the LED background image is light, the light and darkness of video is distorted and when the LED background image is dark, the colors of image are distorted.
Keywords
LED background image device; lighting source; video quality; light intensity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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