DocumentCode :
1753538
Title :
Adaptive rate control based on statistical modeling in frame-layer for H.264/AVC
Author :
Kim, Myoung-Jin ; Hong, Min-Cheol
Author_Institution :
Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea
fYear :
2011
fDate :
13-16 Feb. 2011
Firstpage :
680
Lastpage :
683
Abstract :
The purpose of this paper is to improve allocation of the number of bits without skipping the frame by accurately estimating the target bits in H.264/AVC rate control. In our scheme, we propose an enhancement method of the target frame rate based H.264/AVC bit allocation. The enhancement uses a frame complexity estimation to improve the existing mean absolute difference (MAD) complexity measurement. Bit allocation to each frame is not just computed by target frame rate but also adjusted by a combined frame complexity measure. Using the statistical characteristic, we obtain change of occurrence bit about QP to apply the bit amount by QP from the video characteristic and applied in the estimated bit amount of the current frame. Simulation results show that the proposed rate control scheme could not only achieves time saving of more than 99% over existing rate control algorithm, but also increase the average PSNR of reconstructed video for around 0.02~0.78 dB in all the sequences.
Keywords :
adaptive control; computational complexity; statistical analysis; video coding; H.264/AVC bit allocation; H.264/AVC rate control; adaptive rate control; frame complexity estimation; frame complexity measure; frame-layer; mean absolute difference complexity measurement; reconstructed video; statistical characteristics; statistical modeling; target frame rate; video characteristics; Automatic voltage control; Bit rate; Complexity theory; Encoding; Equations; Mathematical model; PSNR; H.264/AVC; MAD; PSNR; QP; rate control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Communication Technology (ICACT), 2011 13th International Conference on
Conference_Location :
Seoul
ISSN :
1738-9445
Print_ISBN :
978-1-4244-8830-8
Type :
conf
Filename :
5745903
Link To Document :
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