Fast Intra Mode Decision by Estimating the Lower Bound on the Rate-Distortion Cost for HEVC

被引：0
|
作者：
Jeong, Jinwoo [1 ]
Kim, Sungjei [1 ]
Moon, Jeong-Mee [1 ]
Kim, Yong-Hwan [1 ]
机构：
[1] Korea Elect Technol Inst, Intelligent Image Proc Res Ctr, Seongnam Si, South Korea
来源：
2017 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS (ICCE) | 2017年
关键词：
SIZE DECISION; ALGORITHM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
New intra coding in HEVC can improve coding efficiency while the encoding complexity is increased significantly. To reduce encoding complexity preserving rate-distortion (RD) performance, we estimate the lower bound on the rate-distortion (RD) cost of a prediction unit with non most probable modes and the lower bound on RD cost of four sub coding units. Based on the estimates, we introduce early termination methods for fast intra prediction mode decision and fast coding unit size decision for HEVC. Experimental results show the encoding time can be reduced by 22.4% on average without RD performance loss.
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页数：2
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