Name
Abstract | ||
|---|---|---|
The next-generation video coding standard of High-Efficiency Video Coding (HEVC) is especially efficient for coding high-resolution video such as 8K-ultra-high-definition (UHD) video. Fractional motion estimation in HEVC presents a significant challenge in clock latency and area cost as it consumes more than 40 % of the total encoding time and thus results in high computational complexity. With aims at supporting 8K-UHD video applications, an efficient interpolation filter VLSI architecture for HEVC is proposed in this paper. Firstly, a new interpolation filter algorithm based on the 8-pixel interpolation unit is proposed in this paper. It can save 19.7 % processing time on average with acceptable coding quality degradation. Based on the proposed algorithm, an efficient interpolation filter VLSI architecture, composed of a reused data path of interpolation, an efficient memory organization, and a reconfigurable pipeline interpolation filter engine, is presented to reduce the implement hardware area and achieve high throughput. The final VLSI implementation only requires 37.2k gates in a standard 90-nm CMOS technology at an operating frequency of 240 MHz. The proposed architecture can be reused for either half-pixel interpolation or quarter-pixel interpolation, which can reduce the area cost for about 131,040 bits RAM. The processing latency of our proposed VLSI architecture can support the real-time processing of 4:2:0 format 7680 × 4320@78fps video sequences. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1186/s13634-015-0284-0 | EURASIP Journal on Advances in Signal Processing |
Keywords | Field | DocType |
HEVC, Interpolation filter, VLSI | Video post-processing,Computer science,Interpolation,Real-time computing,Artificial intelligence,Motion estimation,Throughput,Computer hardware,Very-large-scale integration,Computer vision,Image scaling,Computational complexity theory,Encoding (memory) | Journal |
Volume | Issue | ISSN |
2015 | 1 | 1687-6180 |
Citations | PageRank | References |
3 | 0.42 | 12 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wei Zhou | 1 | 17 | 9.47 |
| Xin Zhou | 2 | 7 | 1.87 |
| Xiaocong Lian | 3 | 25 | 5.13 |
| zhenyu liu | 4 | 75 | 16.90 |
| Zhenyu Liu | 5 | 120 | 12.29 |