Decision trees for error concealment in video decoding

Authors:
Song Cen;P. C. Cosman
Affiliations:
Dept. of Electr. & Comput. Eng., Univ. of California, La Jolla, CA, USA;-
Venue:
IEEE Transactions on Multimedia
Year:
2003

Citing 0
Cited 3

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Abstract

When macro-blocks are lost in a video decoder such as MPEG-2, the decoder can try to conceal the error by estimating or interpolating the missing area. Many different methods for this type of post-processing concealment have been proposed, operating in the spatial, frequency, or temporal domains, or some hybrid combination of them. In this paper, we show how the use of a decision tree that can adaptively choose among several different error concealment methods can outperform each single method. We also propose two promising new methods for temporal error concealment.