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http://dx.doi.org/10.5573/ieek.2013.50.6.145

A Design of Fractional Motion Estimation Engine with 4×4 Block Unit of Interpolator & SAD Tree for 8K UHD H.264/AVC Encoder  

Lee, Kyung-Ho (Department of Computer Engineering, Kwangwoon University)
Kong, Jin-Hyeung (Department of Computer Engineering, Kwangwoon University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.6, 2013 , pp. 145-155 More about this Journal
Abstract
In this paper, we proposed a $4{\times}4$ block parallel architecture of interpolation for high-performance H.264/AVC Fractional Motion Estimation in 8K UHD($7680{\times}4320$) video real time processing. To improve throughput, we design $4{\times}4$ block parallel interpolation. For supplying the $10{\times}10$ reference data for interpolation, we design 2D cache buffer which consists of the $10{\times}10$ memory arrays. We minimize redundant storage of the reference pixel by applying the Search Area Stripe Reuse scheme(SASR), and implement high-speed plane interpolator with 3-stage pipeline(Horizontal Vertical 1/2 interpolation, Diagonal 1/2 interpolation, 1/4 interpolation). The proposed architecture was simulated in 0.13um standard cell library. The gate count is 436.5Kgates. The proposed H.264/AVC Fractional Motion Estimation can support 8K UHD at 30 frames per second by running at 187MHz.
Keywords
H.264/AVC; Fractional motion estimation; $4{\times}4$ Block Parallel; 2D Cache buffer; Pipeline;
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Times Cited By KSCI : 1  (Citation Analysis)
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