New model of MPEG-4 AVC/H.264 video encoders

For MPEG-4 AVC/H.264 video encoders, the paper describes a model that defines a relationship between the number of bits for texture information and the quantization step size Q. The model is derived individually for I-, P- and B-frames. The model is defined by formulas given individually for 3 intervals covering whole eligible range of Q values. Extensive experiments with numerous test video sequences have proved good accuracy of the model proposed. In particular the new model exhibits higher accuracy than that from the reference implementation of AVC.