CPC H04N 19/196 (2014.11) [H04N 19/124 (2014.11); H04N 19/14 (2014.11); H04N 19/176 (2014.11); H04N 19/177 (2014.11)] | 21 Claims |
1. An apparatus for encoding video frames, the apparatus comprising:
memory;
computer readable instructions; and
processor circuitry to execute the computer readable instructions to:
select a subset of visual masks according to an actual target compression ratio and group of pictures (GOP) configuration;
estimate a picture level spatial and temporal complexity value for a current frame;
specify a visual mask from the subset of the visual masks corresponding to the estimated picture level spatial and temporal complexity value;
derive, using the visual mask, a two-dimensional good enough quantization parameter (QP) lookup table with complexity and compression ratio as inputs for lookup;
derive a good enough picture QP value using the visual mask; and
adjust the good enough picture QP value based on block level human visual system (HVS) sensitivity and statistics of already encoded frames to obtain a final HVS QP map.
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