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Reversible variable length codes for robust image and video transmission

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2 Author(s)
Jiangtao Wen ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Villasenor, J.D.

The International Telecommunications Union (ITU) adopted reversible variable length codes (RVLCs) for use in the emerging H.263+ video compression standard. As the name suggests, these codes can be decoded in two directions and can therefore be used by a decoder to enhance robustness in the presence of transmission bit errors. In addition, these RVLCs involve essentially no efficiency loss relative to the corresponding non-reversible variable length codes. We present here the ideas behind two general classes of RVLCs that include the new H.263+ codes as a special case, and present results on the probability of error detection when these codes are used.

Published in:

Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on  (Volume:2 )

Date of Conference:

2-5 Nov. 1997