Appropriate rate control plays a very important role in encoding motion pictures under the constant bit-rate. One of the requirements for rate control is minimizing temporal fluctuations in picture quality, which may cause flicker artifacts. To satisfy the requirement, some methods for MPEG-1 and MPEG-2 have been proposed. However, these methods cannot be applied to the H.264 encoding algorithm based on R-D optimization since they require the DCT coefficients and the accurate output bit amount for each quantization parameter of a current picture in advance. To overcome the problem, we propose a rate control method to satisfy the requirement in the H.264 encoding algorithm by introducing approximations to estimate the bit amount and the distortion.


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    Title :

    Effective rate control method for minimizing temporal fluctuations in picture quality applicable for MPEG-4 AVC/H.264 encoding


    Contributors:
    Matsumura, A. (author) / Naito, S. (author) / Kawada, R. (author) / Koike, A. (author)


    Publication date :

    2005-01-01


    Size :

    180202 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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