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http://dx.doi.org/10.5909/JBE.2009.14.3.342

Vote Decision-based Deinterlacing Scheme For Directional Error Correction  

Oh, Sye-Hoon (VIA-Multimedia Center at Kwangwoon University)
Lee, Yeo-Song (VIA-Multimedia Center at Kwangwoon University)
Ahn, Chang-Beom (VIA-Multimedia Center at Kwangwoon University)
Oh, Seoung-Jun (VIA-Multimedia Center at Kwangwoon University)
Publication Information
Journal of Broadcast Engineering / v.14, no.3, 2009 , pp. 342-356 More about this Journal
Abstract
This paper presents a vote decision-based deinterlacing scheme for false directional error correction(VDD) to convert interlaced signal into non-interlaced signal using only one fields. The VDD using the vote decision goes through four steps process. The first step extracts regions having doubt of false edge using MM-ELA method. In these regions, the edge direction is decided by the majority vote using upper adjacent pixels's information through the second step. But, we still have undecided directions, which will be decided by the majority vote and the directional average decision at the third step. This step preserves the edge directions and minimizes visual degradation. Finally, the last step interpolates undecided pixels using DOI method which can consider the fine edge direction. Although the VDD with hierarchical structure has a high complexity, it can extract delicate edge compared to other pixel-by-pixel or window-by-window deinterlacing algorithms. Simulation results show that it has significantly improved both the subjective and objective qualities of the reconstructed images.
Keywords
deinterlacing; ELA; DOI; Voting method; interpolation;
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