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Rate Control Methods Evaluation and Analysis for H.263 and MPEG-4 Video Codec
Objectives: Rate controlis a very important factor in video coding. In video communications, rate control must ensure that the coded bit stream can be transmitted effectively and make full use of the narrow bandwidth. For various sequences the impact of rate control methods is examined and algorithm for rate controller for verification model version 8.0 for moving picture expert group-4 is defined. Methods/Statistical Analysis: In this work, Rate control analysis for H.263, MPEG-4 is fulfilled. For Rate control analysis of MPEG-4 test model, verification of model version 8.0 is followd. For H.263 Test Model Number 5 (TMN5), Test Model Number 8 (TMN8) and Test Model Number 12 (TMN12) are used. For various sequences is notice that the bit rate is varied and coefficient of correlation and peak signal to noise ratio is analyzed. Findings: In this work, Rate control analysis for H.263, MPEG-4 is fulfilled. Rate Control algorithm for MPEG-4 is developed. Influence of different rate control methods is analyzed and try to find which rate control methods i.e. C-1, C-2 and C-3 is suitable for which type of sequence specifications. Applications/Improvements: The performance evaluation is put forward for consideration in this work will activate the user analyzing experimental results of various rate control methods and how optimum rate-distortion will fulfilled for MPEG-4&H.263 video codec attained.
Bit Rate, Coefficient of Correlation, PSNR, Quantization Parameter and Rate Control.
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