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http://dx.doi.org/10.13067/JKIECS.2013.8.9.1325

R-Q Modeling for H.264/AVC Rate Control  

Park, Sang-Hyun (순천대학교 멀티미디어공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.8, no.9, 2013 , pp. 1325-1332 More about this Journal
Abstract
The first frame of a GOP, an I frame, is encoded in intra mode which generates a larger number of bits. In addition, the I frame is used for the inter mode encoding of the following frames. Thus the intial QP for the I frame affects the first frame as well as the following frames. In our previous work, we analyzed the number of bits for an I frame and showed that the ratio of the number of bits which maximizes the PSNR of a GOP maintains similar value regardless of GOP's. In this paper, we propose a R-Q model which can be used for the calculation of the initial QP given the amount of bits for an I frame. The proposed model is simple and adaptively modifies model parameters, so it can be applicable to the real-time application. It is shown by experimental results that the proposed model captures initial QP characteristics effectively and the proposed method for model parameters accurately estimates the real values.
Keywords
Initial QP; Rate Control; Traffic Model; Video Compression; H.264/AVC;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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