Method and apparatus for compensating errors in a transmitted vi

Details Method and apparatus for compensating errors in a transmitted vi Method and apparatus for compensating errors in a transmitted vi

1996-12-23

1999-06-15

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348699, 3488451, H04N 712, H04N 514

Patent

active

059127074

ABSTRACT:
An error concealment method first detects a lost block in a reconstructed current frame and then extracts pixel values and motion vectors corresponding to neighboring blocks of the lost block. Thereafter, a motion variance of the motion vectors corresponding to the neighboring blocks of the lost block is determined and compared with predetermined threshold values. Subsequently, according to the result of the above comparison process, the method produces a block substituting the lost block based on the motion vectors of the neighboring blocks or pixel values of the neighboring blocks.

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patent: 5621467 (1997-04-01), Chien et al.
patent: 5737022 (1998-04-01), Yamaguchi et al.

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