公开(公告)号：US20190215521A1

公开(公告)日：2019-07-11

申请号：US16335435

申请日：2017-09-18

Applicant: MEDIATEK INC.

Inventor： Tzu-Der CHUANG ,  Ching-Yeh CHEN ,  Zhi-Yi LIN ,  Jing YE ,  Shan LIU

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/55 ,  H04N19/105 ,  H04N19/139

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/503 ,  H04N19/51 ,  H04N19/55 ,  H04N19/593

Abstract: Methods and apparatus using decoder-side Intra mode derivation (DIMD) are disclosed. According to one method, two-mode DIMD is used, where two DIMD modes are developed. The DIMD predictors for the two DIMD modes are derived. A final DIMD predictor is derived by blending the two DIMD predictors. In a second method, the DIMD mode is combined with a normal Intra mode to derive a combined DIMND-Intra predictor. In a third method, the DIMD mode is combined with an Inter mode to derive a combined DIMD-Inter predictor. Various blending methods to combine the DIMD mode and another mode are also disclosed.