A Fast-Deblocking Boundary-strength Based Architecture Design of Deblocking Filter in H.264/AVC Applications

Abstract

This work presents an efficient architecture design for deblocking filter in H.264/AVC using a novel fast-deblocking boundary-strength (FDBS) technique. Based on the FDBS technique, the proposed architecture divides the deblocking process into three filtering modes, namely offset-based, standard-based and diagonal-based filtering modes, to reduce the blocking artifact and improve the video quality in H.264/AVC. The proposed architecture is designed in Verilog HDL, simulated with Quartus II and synthesized using 0.18 μm CMOS cells library with the Synopsys Design Compiler. Simulation results demonstrate good performance in PSNR improvement and bit-rate reduction. Additionally, verification results through physical chip design reveal that the proposed architecture design can support 1,280×720@30 Hz processing throughput while clocking at 100 MHz. Comparisons with other studies show the excellent properties of the proposed architecture in terms of gate count, memory size and clock-cycle/macroblock.