Title :
A method for robust decoding of erroneous MPEG-2 video bitstreams
Author_Institution :
Stuttgart Univ., Germany
fDate :
8/1/1996 12:00:00 AM
Abstract :
A robust algorithm for source decoding of MPEG-2 video bitstreams not entirely free of transmission errors is presented. The proposed scheme does not assume any side information from a channel decoder to assist the detection and localization of errors, i.e. it only refers to the video bitstream. Different methods are used to act on errors detected during decoding of the block and macroblock layer, to localize corrupted image regions and to replace them by error concealment are described. They are compared by objective and subjective results of decoder simulations. Furthermore, the steps necessary for robust synchronization at the slice layer and for a reliable evaluation of higher layer headers and extensions are explained
Keywords :
code standards; coding errors; decoding; error correction codes; error detection codes; error statistics; image segmentation; telecommunication standards; video coding; MPEG-2 video bitstreams; block layer; channel decoder; corrupted image regions localization; decoder simulations; error concealment; error detection; error localization; higher layer headers; macroblock layer; objective results; robust algorithm; robust decoding; robust synchronization; slice layer; source decoding; subjective results; transmission errors; Decoding; Discrete cosine transforms; Forward error correction; MPEG standards; Motion control; Motion estimation; Protection; Quantization; Robustness; Video coding;
Journal_Title :
Consumer Electronics, IEEE Transactions on
