Method for constructing tile structure and apparatus therefor
The present invention discloses a method for constructing a tile structure, wherein a current picture includes at least two or more tiles, the at least two or more tiles are split by a column splitting and a row splitting, at least one or more of the column splitting and the row splitting are performed by using a splitting length which is shorter than a width length or a height length of the current picture.
1. A method for constructing a tile structure, wherein a current picture includes at least two or more tiles, the at least two or more tiles are splitted by a column splitting or a row splitting,
wherein the at least two or more of the splitted tiles are merged to form the tile structure,
wherein the merging of the at least two or more tiles is determined based on merge number information indicating how many tiles are merged among the splitted tiles,
wherein the at least two or more tiles is splitted based on tile usage flag indicating whether the current picture is splitted into at least two or more tiles,
when the tile usage flag indicates the current picture is splitted into at least two or more tiles, wherein the at least two or more tiles are splitted based on column direction splitting number information indicating the number of dividing tiles in the column direction of the current picture.
2. The method of claim 1 , wherein the merging of the at least two or more tiles is determined based on tile merge flag.
3. The method of claim 1 , wherein the merge number information indicates a number of tiles to be merged in row direction or column direction.