Title :
Error concealment for shape coding
Author :
Salama, Paul ; Huang, Cheng
Author_Institution :
Dept. of Electr. & Comput. Eng., Indiana Univ, Indianapolis, IN, USA
Abstract :
In ATM networks cell loss or channel errors can cause data to be dropped in the channel. When digital images/video are transmitted over these networks one must be able to reconstruct the missing data so that the impact of the errors is minimized. We present an error concealment technique for object-coded sequences using the MPEG-4 video coding standard. This method, which is based on using global motion estimation for boundary recovery, consists of boundary extraction, boundary patching using global motion compensation, and object filling to reconstruct the damaged video object.
Keywords :
asynchronous transfer mode; code standards; data compression; feature extraction; image reconstruction; image sequences; motion compensation; motion estimation; packet switching; telecommunication networks; telecommunication standards; video coding; visual communication; ATM networks; MPEG-4 video coding standard; boundary extraction; boundary patching; boundary recovery; cell loss; channel errors; digital images/video transmission; error concealment; global motion compensation; global motion estimation; missing data reconstruction; object filling; object-coded sequences; shape coding; video object reconstruction; Computer errors; Data mining; Filling; Image reconstruction; MPEG 4 Standard; Motion compensation; Motion estimation; Shape; Video coding; Video sequences;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1040047
