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Video coding and video decoding apparatus

  • US 6,330,364 B1
  • Filed: 08/09/2000
  • Issued: 12/11/2001
  • Est. Priority Date: 09/29/1995
  • Status: Expired due to Fees
First Claim
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1. A computer readable storage medium in which a computer program is stored, the computer program comprising:

  • means for instructing a computer to receive an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0 and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture, to obtain an alpha-map signal of the rectangular object region, a position of the rectangular object region, and a size of the rectangular object region;

    means for instructing the computer to encode the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and

    means for instructing the computer to multiplex the coded alpha-map data and the coded position/size data.

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