Image analysis – Image compression or coding
Reissue Patent
2007-04-03
2007-04-03
Dang, Duy M. (Department: 2624)
Image analysis
Image compression or coding
C382S233000, C382S254000, C382S266000
Reissue Patent
active
11081073
ABSTRACT:
delete-start id="DEL-S-00001" date="20070403" ?The present invention relates to a method for recovering a compressed image for an image processing technique and an apparatus therefor. In the present invention, a cost function is defined in consideration with a directional characteristic of the pixels which will be recovered and a plurality of pixels of the recovering pixels. In addition, a regularization parameter variable having a certain weight is obtained from the cost function, and the regularization parameter variable is approximated using the compressed pixel for thereby obtaining a recovering pixel. The regularization parameter variable has a weight of a reliability with respect to the original image and a weight of a smoothing degree of the original image.delete-end id="DEL-S-00001" ?insert-start id="INS-S-00001" date="20070403" ?In the methods and apparatuses for recovering a compressed motion picture a cost function is defined in consideration with a directional characteristic of the pixels which will be recovered and a plurality of pixels of the recovering pixels. In addition, a regularization parameter variable having a certain weight is obtained from the cost function, and the regularization parameter variable is approximated using the compressed pixel for thereby obtaining a recovering pixel. In the methods and apparatuses for filtering, a filtering method is selected from filtering methods having different filtering strengths based on whether a pixel being filleted is in an intra-coded portion of an image.insert-end id="INS-S-00001" ?
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Dang Duy M.
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