Video coding and video decoding apparatus
First Claim
1. A computer readable storage medium in which an encoded picture data stream is stored, said encoded picture data stream being read out and decoded by a computer, comprising:
- coded alpha-map data indicating an alpha-map signal of a rectangular object 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 object region.
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Accused Products
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.
21 Citations
10 Claims
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1. A computer readable storage medium in which an encoded picture data stream is stored, said encoded picture data stream being read out and decoded by a computer, comprising:
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coded alpha-map data indicating an alpha-map signal of a rectangular object 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 object region. - View Dependent Claims (2, 3, 4, 5)
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6. A computer readable storage medium in which an encoded picture data stream is stored, said encoded picture data stream being read out and decoded by a computer, comprising:
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coded binary picture data indicating a binary picture signal of a rectangular object 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 object region. - View Dependent Claims (7, 8, 9, 10)
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Specification