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http://dx.doi.org/10.6109/jkiice.2015.19.1.178

Hardware Design of High Performance HEVC Deblocking Filter for UHD Videos  

Park, Jaeha (Department of Information and Communication Engineering, Hanbat National University)
Ryoo, Kwangki (Department of Information and Communication Engineering, Hanbat National University)
Abstract
This paper proposes a hardware architecture for high performance Deblocking filter(DBF) in High Efficiency Video Coding for UHD(Ultra High Definition) videos. This proposed hardware architecture which has less processing time has a 4-stage pipelined architecture with two filters and parallel boundary strength module. Also, the proposed filter can be used in low-voltage design by using clock gating architecture in 4-stage pipeline. The segmented memory architecture solves the hazard issue that arises when single port SRAM is accessed. The proposed order of filtering shortens the delay time that arises when storing data into the single port SRAM at the pre-processing stage. The DBF hardware proposed in this paper was designed with Verilog HDL, and was implemented with 22k logic gates as a result of synthesis using TSMC 0.18um CMOS standard cell library. Furthermore, the dynamic frequency can process UHD 8k($7680{\times}4320$) samples@60fps using a frequency of 150MHz with an 8K resolution and maximum dynamic frequency is 285MHz. Result from analysis shows that the proposed DBF hardware architecture operation cycle for one process coding unit has improved by 32% over the previous one.
Keywords
Deblocking Filter; HEVC; Hardware architecture; In-loop filter;
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Times Cited By KSCI : 1  (Citation Analysis)
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