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Image processing system

  • US 6,333,951 B1
  • Filed: 02/07/1997
  • Issued: 12/25/2001
  • Est. Priority Date: 03/25/1993
  • Status: Expired due to Fees
First Claim
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1. An interblock distortion removal filter used in a process of decoding compression data to video data, said compression data being generated by dividing original video data constituting one screen page into a plurality of M×

  • N-pixel blocks and coding said video data by each block according to an irreversible coding method, M and N representing integers greater than one but less than the number of pixels along the least pixel dimension of said screen page, said filter comprising;

    a first memory for storing first video data of M lines decoded along a predetermined direction of an image;

    a second memory for storing second video data of another M lines adjacent to said first video data, said first and second memory having a combined memory capacity that is less than what is required for storing an image of the entire screen page; and

    a computing element for reading out video data of a first line in said second memory or said first memory while reading out video data of a last line in said first memory or said second memory and executing a predetermined filtering process between said video data of the first line and said video data of the last line.

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