FIELD: information technologies.
SUBSTANCE: method is proposed for coding of clarification coefficients in layer of scalable increase of signal-noise ratio (SNR) quality in compressed sequence of video frames. Sequence of video frames is received. Forecasting of initial video signal is composed of video sequence in current frame. Differential signal is generated by subtraction of initial video signal forecast from initial video signal in current frame. Conversion is applied to differential signal. Multiple conversion ratios are quantised. Clarification coefficient is displayed into ternary clarification symbol. Clarification symbols are grouped in a certain sequence of coding. Groups of clarification symbols are coded using codes of alternate length.
EFFECT: improved efficiency of video data coding.
30 cl, 15 dwg
