Title :
High-frequency error concealment in wavelet-based image coding
Author :
Atzori, L. ; Giusto, D.D. ; Raccis, A.
Author_Institution :
Multimedia Commun. Lab., Cagliari Univ., Italy
fDate :
1/23/2003 12:00:00 AM
Abstract :
A new algorithm for high-frequency subband error concealment in wavelet-based picture coding is presented. It is based on a wavelet patch repetition approach: the LBG algorithm, given by Linde et al., is used to generate a codebook of patches and, according to a boundary distance measure, one of these patches is selected to mask the damaged area. Experiments show noteworthy results.
Keywords :
image coding; wavelet transforms; LBG algorithm; boundary distance measure; high-frequency subband error concealment; image coding; patch codebook; wavelet patch repetition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030154
