TY - GEN
T1 - An optimized mapping algorithm for classified video transmission with the H.264 flexible macroblock ordering
AU - Im, Sio Kei
AU - Pearmain, A. J.
PY - 2006
Y1 - 2006
N2 - A new mapping algorithm is proposed for categorization of frames' macroblocks into two (or more) classes in flexible macroblock ordering to give error resilient video transmission. The successful transmission of macroblock data not only enhances the quality of the associated pixels, but also improves the quality of the adjacent lost macroblocks by improving the efficiency of error concealment. Therefore, in our scheme, by carefully modeling the decoder error concealment algorithm at the encoder side, we classify the macroblocks according to their eventual influence on picture quality. Within a limited bit rate budget, we employ an optimization algorithm to select the best group of high-priority macroblocks. We show that prioritized transmission of the more important macroblock group will improve the video quality in error situations where our mapping algorithm outperforms the default mappings of the H.264 codec.
AB - A new mapping algorithm is proposed for categorization of frames' macroblocks into two (or more) classes in flexible macroblock ordering to give error resilient video transmission. The successful transmission of macroblock data not only enhances the quality of the associated pixels, but also improves the quality of the adjacent lost macroblocks by improving the efficiency of error concealment. Therefore, in our scheme, by carefully modeling the decoder error concealment algorithm at the encoder side, we classify the macroblocks according to their eventual influence on picture quality. Within a limited bit rate budget, we employ an optimization algorithm to select the best group of high-priority macroblocks. We show that prioritized transmission of the more important macroblock group will improve the video quality in error situations where our mapping algorithm outperforms the default mappings of the H.264 codec.
UR - http://www.scopus.com/inward/record.url?scp=34247553832&partnerID=8YFLogxK
U2 - 10.1109/ICME.2006.262813
DO - 10.1109/ICME.2006.262813
M3 - Conference contribution
AN - SCOPUS:34247553832
SN - 1424403677
SN - 9781424403677
T3 - 2006 IEEE International Conference on Multimedia and Expo, ICME 2006 - Proceedings
SP - 1445
EP - 1448
BT - 2006 IEEE International Conference on Multimedia and Expo, ICME 2006 - Proceedings
T2 - 2006 IEEE International Conference on Multimedia and Expo, ICME 2006
Y2 - 9 July 2006 through 12 July 2006
ER -