Video coding and video decoding apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsNoboru Yamaguchi, Toshiaki Watanabe, Takashi Ida, Takaaki Kuratate
Life of this patent
Estimating the term…
Abstract
A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
Claims10
A picture data signal for transmitting encoded picture information, said picture data signal comprising:
- an encoded picture stream including a code string which includes:
- coded alpha-map data indicating an alpha-map signal of a rectangular region containing an object and a part of a background surrounding the object;
- and
- coded position/size data indicating a position and a size of the rectangular region.
A picture data signal for transmitting encoded picture information, said picture data signal comprising:
- an encoded picture stream including a code string which includes:
- coded binary picture data indicating a binary picture signal of a rectangular region containing an object and a part of a background surrounding the object;
- and
- coded position/size data indicating a position and a size of the rectangular region.
Dependencies are inferred from the claim text.