Research on adaptive rate control algorithm for H.264 based on R-Q model

Research on adaptive rate control algorithm for H.264 based on R-Q model

Blog Article

The foundation theory of rate control theory in H.264 video coding standard was analyzed.The latest research work about rate control algorithm were summarized.On the basis of analysis.

A novel frame-level rate control algorithm was proposed.Firstly,in order to reduce the inter-dependency between RDO (rate-distortion optimization) and rate control,a kind of two-stage Magazine Rack rate control algorithm was presented.Secondly,to provide more accurate prediction of the frame complexity,instead of the MAD (mean absolute Replacement leathers difference),bits information in the RDO-based mode decision process was employed to predict the frame complexity.Thirdly,a self-adaptive exponential R-Q model was proposed.

The proposed rate control algorithm overcomes the disadvantages in the rate control precision and encoding performance of former algorithms.