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Apparatus and method for processing groups of fields in a video data compression system to encode a single frame as an I-field and a P-field

  • US RE36,507 E
  • Filed: 10/21/1997
  • Issued: 01/18/2000
  • Est. Priority Date: 03/27/1992
  • Status: Expired due to Term
First Claim
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2. to the field being bidirectionally predictively encoded..]..Iadd.13. A method of automatically encoding a sequence of video image frames, each frame including first and second fields designated odd and even fields, the method comprising the steps of:

  • encoding the first field of a first frame in the sequence of video image frames using only video information in the first field to produce an I-field;

    decoding the encoded I-field to produce a decoded I-field;

    predictively encoding the second field of the first frame using only video information in the second field and in the decoded I-field to produce a P-field;

    decoding the encoded P-field to produce a decoded P-fieldstoring the decoded I-field and the decoded P-field; and

    considering the video information in the stored I- and P-fields, which together represent the odd and even fields of the first frame, to produce

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