US 11,659,206 B2
Video encoding method with syntax element signaling of guard band configuration of projection-based frame and associated video decoding method and apparatus
Ya-Hsuan Lee, Hsinchu (TW); and Jian-Liang Lin, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsin-Chu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Jul. 1, 2020, as Appl. No. 16/917,917.
Claims priority of provisional application 62/954,814, filed on Dec. 30, 2019.
Claims priority of provisional application 62/903,056, filed on Sep. 20, 2019.
Claims priority of provisional application 62/870,139, filed on Jul. 3, 2019.
Claims priority of provisional application 62/869,627, filed on Jul. 2, 2019.
Prior Publication US 2021/0006838 A1, Jan. 7, 2021
Int. Cl. H04N 19/70 (2014.01); H04N 19/184 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/184 (2014.11)] 15 Claims
OG exemplary drawing
 
1. A video decoding method comprising:
decoding a part of a bitstream to generate a decoded frame, wherein the decoded frame is a projection-based frame that comprises projection faces packed in a cube-based projection layout, and at least a portion of a 360-degree content of a sphere is mapped to the projection faces via cube-based projection; and
parsing syntax elements from the bitstream, wherein one of the syntax elements is arranged to indicate whether the projection-based frame contains at least one guard band; and another of the syntax elements is distinct from said one of the syntax elements and is arranged to indicate whether said at least one guard band packed in the projection-based frame comprises one or more guard bands that act as layout boundaries of the cube-based projection layout, where none of the layout boundaries is between two of the projection faces packed in the cube-based projection layout;
wherein parsing the syntax elements from the bitstream comprises:
parsing said one of the syntax elements from the bitstream; and
in response to said one of the syntax elements being set to indicate that the projection-based frame contains said at least one guard band, parsing said another of the syntax elements from the bitstream, wherein said one of the syntax elements and said another of the syntax elements are separate syntax elements signaled via the bitstream.