1) The document proposes using homogeneous motion discovery to generate additional reference frames for 4K video coding. Motion is estimated between reference frames and the current frame to generate affine motion models and associated masks. 2) Experimental results on 3 video sequences show average bit rate savings of 3.78% over HEVC by using the additional reference frames generated from the affine motion models. 3) The approach provides a simpler computation method for high resolution video coding compared to motion hint estimation, which requires super-pixel segmentation that becomes impractical for resolutions like 4K.