Deblocking Filter (DBF) is one of the components which have high computational complexity in HEVC decoder. Its processing speed directly affects the whole performance of video decoders. This paper proposes a high performance five-stage-pipeline-based hardware Architecture of DBF. In order to eliminate the influence of data dependency in the pipeline operation
a 16×8 pixels unit is chosen as basic processing unit. This unit occupies very little internal storage resources. The proposed hardware Architecture is implemented in Verilog-HDL. The implementation is synthesized by Xilinx ISE tool. The results show that the proposed architecture can meet requirement of real-time decoding 4 096×2 048@60fps high definition video under an operating frequency of 48.1 MHz.
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Jiayi Z H U, Dajiang Z. A high performance HEVC de-blocking filter and SAO architecture for UHDTV decoder[J]. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2013, 96(12): 2612-2622. DOI: 2612
Srinivasarao B K N, Chakrabarti I, Ahmad M N. High-speed low-power very-large-scale integration architecture for dual-standard deblocking filter[J]. Circuits, Devices % Systems, IET, 2015, 9(5): 377-383. DOI: 377
Cheng W, Fan Y, Lu Y H, et al. A high-throughput HEVC deblocking filter VLSI architecture for 8k×4k application[C]//Circuits and Systems (ISCAS), 2015 IEEE International Symposium on. Portugal. Lisbon, IEEE, 2015: 605-608.
Norkin A, Bjontegaard G, Fuldseth A, et al. HEVC deblocking filter[J]. Circuits and Systems for Video Technology, IEEE Transactions on, 2012, 22(12): 1746-1754. DOI: 1746
Sullivan G J, Ohm J R, Han W J, et al. Overview of the high efficiency video coding (HEVC) standard[J]. Circuits and Systems for Video Technology, IEEE Transactions on, 2012, 22(12): 1649-1668. DOI: 1649
Ozcan E, Adibelli Y, Hamzaoglu I. A high performance deblocking filter hardware for high efficiency video coding[J]. Consumer Electronics, IEEE Transactions on, 2013, 59(3): 714-720. DOI: 714
Vanne J, Viitanen M, Hamalainen T D, et al. Comparative rate-distortion-complexity analysis of HEVC and AVC video codecs[J]. Circuits and Systems for Video Technology, IEEE Transactions on, 2012, 22(12): 1885-1898. DOI: 1885
Diniz C M, Shafique M, Dalcin F V, et al. A deblocking filter hardware architecture for the high efficiency video coding standard[C]//Proceedings of the 2015 Design, Automation % Test in Europe Conference % Exhibition. California, EDA Consortium, 2015: 1509-1514.
ITU. ITU-T Recommendation H. 265. High efficiency video coding[S]. Geneva, Switzerland: Telecommunication Standardization Sector, 2013.