Title :
Spatial error concealment of corrupted image data using frequency selective extrapolation
Author :
Meisinger, Katrin ; Kaup, André
Author_Institution :
Erlangen-Nurnberg Univ., Erlangen, Germany
Abstract :
The paper introduces a method for spatial error concealment of lost image data in erroneous image transmission. The image content of the correctly received surrounding blocks is successively approximated by a weighted linear combination of basis functions and the missing block is obtained by extrapolation. An implementation in the frequency domain allows an efficient realization. Investigations show that particularly 2D DFT basis functions are suited for signal extrapolation in order to be able to reconstruct both monotone areas and edges.
Keywords :
approximation theory; error correction; extrapolation; image reconstruction; visual communication; 2D DFT basis functions; corrupted image data; erroneous image transmission; frequency domain; frequency selective extrapolation; image content; image reconstruction; monotone area edges; signal extrapolation; spatial error concealment; weighted linear combination; Decoding; Extrapolation; Frequency domain analysis; Image communication; Image reconstruction; Multimedia communication; Parametric statistics; Propagation losses; Signal processing; Videos;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326518
