Xilinx, Inc.
Removing blocking artifacts in video encoders

Abstract:

A method for video encoding is provided. The method comprises retrieving a first video frame comprising a plurality of pixel blocks; determining a rate distortion optimization (RDO) cost for a first prediction mode for a pixel block; determining a variance-bits ratio (VBR) of the pixel block; upon determining the VBR is greater than a predefined threshold, scaling the RDO cost for the first prediction mode based on a predefined scale factor; and selecting one of the first prediction mode and a second prediction mode for video encoding of the first video frame based on comparing the scaled RDO cost for the first prediction mode and a second RDO cost for the second prediction mode for the pixel block.