公开(公告)号：US20190281312A1

公开(公告)日：2019-09-12

申请号：US16293647

申请日：2019-03-06

申请人： MEDIATEK INC.

发明人： Chi-Min Chen ,  Min-Hao Chiu ,  Chia-Yun Cheng ,  Yung-Chang Chang

IPC分类号： H04N19/186 ,  H04N19/182 ,  H04N19/119 ,  H04N19/157 ,  H04N19/44 ,  H04N19/91

摘要： A palette decoding apparatus includes a palette color storage device which stores palette colors, a color index storage device which stores color indices of pixels, and a palette value processing circuit which generates a palette value for each pixel by reading data from the color index storage device and the palette color storage device. A frame is divided into first coding units, and each first coding unit is sub-divided into one or more second coding units. Before a palette value of a last pixel in a first coding unit is generated by the palette value processing circuit, a palette value of a non-last pixel in the first coding unit is generated by the palette value processing circuit and used by a reconstruction circuit of the video decoder.

公开(公告)号：US10659794B2

公开(公告)日：2020-05-19

申请号：US16293647

申请日：2019-03-06

申请人： MEDIATEK INC.

发明人： Chi-Min Chen ,  Min-Hao Chiu ,  Chia-Yun Cheng ,  Yung-Chang Chang

IPC分类号： H04N19/124 ,  H04N19/186 ,  H04N19/182 ,  H04N19/91 ,  H04N19/157 ,  H04N19/44 ,  H04N19/119

摘要： A palette decoding apparatus includes a palette color storage device which stores palette colors, a color index storage device which stores color indices of pixels, and a palette value processing circuit which generates a palette value for each pixel by reading data from the color index storage device and the palette color storage device. A frame is divided into first coding units, and each first coding unit is sub-divided into one or more second coding units. Before a palette value of a last pixel in a first coding unit is generated by the palette value processing circuit, a palette value of a non-last pixel in the first coding unit is generated by the palette value processing circuit and used by a reconstruction circuit of the video decoder.