×

Lossless image encoding/decoding method and apparatus using inter-color plane prediction

  • US 20050013370A1
  • Filed: 07/16/2004
  • Published: 01/20/2005
  • Est. Priority Date: 07/16/2003
  • Status: Active Grant
First Claim
Patent Images

1. A lossless image encoding apparatus, which losslessly encodes a color image using residue prediction between different color image components, the apparatus comprising:

  • a motion prediction image generator estimating motion between a previous image and a current image in units of predetermined sized blocks and outputting a prediction image;

    a residue generator generating a temporal residue corresponding to a difference between the prediction image and a corresponding block of the current image with respect to different components of the current image;

    a prediction residue generator generating prediction residues by defining a linear-transformed value of one residue, of the different components, output from the residue generator as a predictor residue and using respective differences between residues of other components, of the different components, and the predictor residue; and

    an entropy encoder receiving the predictor residue and prediction residues and generating a bitstream by entropy encoding the predictor residue and the prediction residues.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×