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Multiple picture-data compression system

  • US 7,515,760 B2
  • Filed: 05/27/2005
  • Issued: 04/07/2009
  • Est. Priority Date: 10/06/2004
  • Status: Expired due to Fees
First Claim
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1. A picture-data compression system for compressing inputted multiple picture data, comprising:

  • a storage device that stores the multiple picture data;

    a selection controller that writes the multiple picture data into the storage device and reads the multiple picture data from the storage device;

    a pixel-number converter that converts the number of pixels of the picture data read from the storage device; and

    an inter-picture predictive coding unit that codes the picture data whose number of pixels is converted by the pixel-number converter by inter-picture predictive coding, whereinthe selection controller reads the picture data written to the storage device at a period of 1/n (positive integer) times the frame period or field period of the picture data;

    the pixel-number converter converts the number of pixels of the picture data read from the storage device to 1/m times (positive integer) the original; and

    the selection controller controls the values n and m depending on the number of pixels that can be processed by the inter-picture predictive coding unit in a unit time.

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