Method and apparatus for video encoding for each spatial sub-area, and method and apparatus for video decoding for each spatial sub-area

An apparatus for encoding a video, the apparatus comprising:

• a sub-region divider configured to determine tiles, including a current tile, wherein the tiles splits an image horizontally and determine a plurality of maximum coding units in the current tile and a current slice segment;
• and
• a sub-region encoder configured to generate a bitstream including information about a location of a row boundary of the tiles and split information of a coding unit,
• wherein:
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A non-transitory computer-readable medium for storing data associated with a video, comprising a bitstream stored in the non-transitory computer readable medium, the bitstream including:

• information about a location of a row boundary of tiles including a current tile, which split an image horizontally;
• and
• split information of a coding unit,
• wherein:
• a plurality of maximum coding units are determined in the current tile and a current slice segment,
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A method for encoding a video, the method comprising:

• determining tiles, including a current tile, wherein the tiles splits an image vertically;
• determining a plurality of maximum coding units in the current tile and a current slice segment;
• and
• generating a bitstream including information about a location of a column boundary of the tiles and split information of a coding unit,
• wherein:
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A non-transitory computer-readable medium for storing data associated with a video, comprising a bitstream stored in the non-transitory computer readable medium, the bitstream including:

• information about a location of a column boundary of tiles including a current tile, which split an image vertically;
• and
• split information of a coding unit,
• wherein:
• a plurality of maximum coding units are determined in the current tile and a current slice segment,
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A method for encoding a video, the method comprising:

• determining tiles, including a current tile, wherein the tiles splits an image vertically;
• determining a plurality of maximum coding units in the current tile and a current slice segment;
• and
• generating a bitstream including information about a location of a column boundary of the tiles, information about a location of a row boundary of the tiles and split information of a coding unit,
• wherein:
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A non-transitory computer-readable medium for storing data associated with a video, comprising a bitstream stored in the non-transitory computer readable medium, the bitstream including:

• information about a location of a column boundary of tiles including a current tile, which split an image vertically;
• information about a location of a row boundary of the tiles which split an image horizontally;
• and
• split information of a coding unit,
• wherein:
• a plurality of maximum coding units are determined in the current tile and a current slice segment,
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A non-transitory computer-readable medium for storing data associated with a video, comprising a bitstream stored in the non-transitory computer readable medium, the bitstream including:

• information about a location of a column boundary of tiles including a current tile, which split an image vertically;
• information about a maximum size of a coding unit;
• and
• split information of a coding unit,
• wherein:
• a plurality of maximum coding units are determined in the current tile and a current slice segment based on the information about a maximum size of a coding unit,
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A method for encoding a video, the method comprising:

• determining tiles, including a current tile, wherein the tiles splits an image vertically;
• determining a plurality of maximum coding units in the current tile and a current slice segment;
• and
• generating a bitstream including information about a location of a column boundary of the tiles, information about a location of a row boundary of the tiles, information about a maximum size of a coding unit and split information of a coding unit,
• wherein:
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.

A non-transitory computer-readable medium for storing data associated with a video, comprising a bitstream stored in the non-transitory computer readable medium, the bitstream including:

• information about a location of a column boundary of tiles including a current tile, which split an image vertically;
• information about a location of a row boundary of the tiles which split an image horizontally;
• information about a maximum size of a coding unit;
• and
• split information of a coding unit,
• wherein:
• a plurality of maximum coding units are determined in the current tile and a current slice segment based on the information about a maximum size of a coding unit,
• all maximum coding units in the current slice segment are included in the current tile, and
• when the split information of the coding unit of a current depth indicates a split, the coding unit of the current depth is split into coding units of a lower depth.