Title :
Reversible variable length codes for robust image and video transmission
Author :
Wen, Jiangtao ; Villasenor, John D.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
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.
Keywords :
code standards; coding errors; error detection codes; image coding; probability; telecommunication standards; variable length codes; video coding; visual communication; Golomb-Rice codes; H.263+ codes; H.263+ video compression standard; ITU; International Telecommunications Union; decoder; error detection probability; exp-Golomb codes; nonreversible variable length codes; reversible variable length codes; robust image transmission; robust video transmission; transmission bit errors; Code standards; Decoding; ISO standards; Image coding; Image storage; Robustness; Standards organizations; Video coding; Video compression; Working environment noise;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.679052
