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http://dx.doi.org/10.5762/KAIS.2012.13.10.4780

Optimal Parameter Selection of H.264 Encoder For Mobile Devices  

Ryu, Minhee (Department of Computer Science and Engineering, Chungnam National University)
Kim, Hyungshin (Department of Computer Science and Engineering, Chungnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.10, 2012 , pp. 4780-4785 More about this Journal
Abstract
As many mobile devices such as smart phones and tablets are widely spread, optimized mobile video encoder used during video recording application is needed. In this paper, we implemented H.264/AVC base profile video encoder on a mobile device and empirically optimized control parameters of the encoder. As the experiment, we more than 100 test cases were designed with varying Lagrangian optimization, Hadamard Transform, search range, I-frame period, and reference frames. During the experiment, we measured picture quality, bit-rate, encoding time, motion estimation time, and power consumption. From the result, we can determine optimal values for the H.264 control parameters.
Keywords
Video encoder; Mobile video; H.264; Encoder optimization; Energy consumption;
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