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Image data encoding method and device, image data reconstructing method and device, scene change detecting method and device, scene change recording device, and image data scene change record/regenerating device

  • US 5,614,960 A
  • Filed: 06/19/1996
  • Issued: 03/25/1997
  • Est. Priority Date: 09/07/1992
  • Status: Expired due to Term
First Claim
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1. An image data encoding method for encoding image data comprising:

  • a detection condition storing step of storing a detection condition set for detecting a scene-changed frame;

    an encoding step of encoding image data of an input frame;

    a code amount storing step of storing the amount of codes in the data, encoded in said encoding step, of previous and present frames;

    a determining step of determining whether or not the present frame is a scene-changed frame according to the amount of codes of the previous and present frames stored in said code amount storing step 3 and to the condition set for detecting a scene-changed frame stored in said detection condition storing step;

    and an output step for outputting, as a determination result of said determining step, said encoded data generated in the code amount storing step and a code indicating a scene-changed frame if the present frame is a scene-changed frame, and only the encoded data if the present frame is not a scene-changed frame, whereinsaid encoding step, said code amount storing step, said determining step, and said output step are performed on image data in a plurality of frames whose data are to be encoded.

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