Patent ID: 9118912
Filing Date: 2015-08-25
Classification: H04N

Abstract:
1. A method comprising: selecting at least two frames from a video sequence having a plurality of frames; determining a total area of at least one object of interest in each of the selected frames; comparing each total area to a threshold area; classifying each selected frame having a total area exceeding the threshold area as a low object weighted frame; determining per-frame QP (quantization parameter) offset contribution from an amount of temporal masking effect at a frame (ΔQP combining the ΔQP classifying each of the selected frames having a total area not exceeding the threshold area as a high object weighted frame; encoding each low object weighted frame according to a first encoding mode and encoding each high object weighted frame according to a different encoding mode, wherein the high object weighted frames that are contiguous are encoded using a bit rate obtained using the combined calculated ΔQP