@inproceedings{8b051f20098b451c8396c2968aa6de44,
title = "Multi-lambda search for improved rate-distortion optimization of H.265/HEVC",
abstract = "Lagrangian Rate Distortion Optimization (RDO) is widely employed in modern video encoders such as H.265/HEVC for mode decision. For each encoding stage, this approach involves minimizing a cost, which is a function of rate, distortion and a multiplier called lambda. This paper explores multi-lambda search and its impact on RDO by using more than one value of lambda. Simulations show an average bit rate saving up to 13.0\% can be achieved for the H.265/HEVC codec. Moreover, the extra added complexity is contained to a certain level and is also adjustable according the processing resources available.",
keywords = "Lagrange multiplier, Multi-Lambda, Quantization Parameter, Rate-Distortion Optimization",
author = "Im, \{Sio Kei\} and Chan, \{Ka Hou\}",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 10th International Conference on Information, Communications and Signal Processing, ICICS 2015 ; Conference date: 02-12-2015 Through 04-12-2015",
year = "2016",
month = apr,
day = "26",
doi = "10.1109/ICICS.2015.7459952",
language = "English",
series = "2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2015 10th International Conference on Information, Communications and Signal Processing, ICICS 2015",
address = "United States",
}