An efficient interpolation filter VLSI architecture for HEVC

Firstly, an implementation-friendly interpolation filter algorithm is proposed in this paper. It can save 19.6% processing time on average with negligible coding quality degradation. Then based on the proposed algorithm, an optimized interpolation filter VLSI architecture, composed of the reused data path of interpolation, efficient memory organization and the pipeline interpolation filter engine is presented to reduce the implement hardware area. The resulting design can achieve 240 MHz with only 37.2K gate count and support real-time interpolation filter operation of 3840×2160@47fps video application by using 90nm CMOS technology.