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http://dx.doi.org/10.13067/JKIECS.2014.9.12.1447

Adaptive Intra Frame Encoding for H.264/AVC  

Park, Sang-Hyun (순천대학교 멀티미디어공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.9, no.12, 2014 , pp. 1447-1454 More about this Journal
Abstract
In H.264 standard, an intra frame is the first frame of a GOP (Group of Pictures) and all macroblocks of an intra frame are encoded using the same quantization parameter. In addition, an intra frame is used for encoding the following frames of the same GOP so the encoding results of an intra frame affect the encoding results of the entire GOP. Thus, it is important to find the optimal quantization parameter of an intra frame for improving the quality of a GOP. In this paper, we propose an searching method for an optimal quantization parameter of an intra frame in real time. The proposed method uses a gradient descent method to find the optimal value based on characteristics of the optimal quantization parameters. Experimental results show that the proposed method captures the characteristics of the optimal quantization parameter and accurately estimates the optimal value.
Keywords
Rate Control; Video Compression; H.264/AVC; Initial QP;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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