A variety of multimedia applications are becoming available on wireless networks nowadays. However, packet loss when transiting videos over wireless networks is inevitable, and leads to error propagation in information of subsequent frames and a decline in picture quality. To solve the problems, this paper proposes an estimation method based on the H.264/AVC codecs smallest units of encoding and decoding to provide unequal loss protection and to allocate forward error correction (FEC) packets. We propose a Frame Macroblock Error Propagation Index (FMEPI) estimation method to determine the importance of frames. Moreover, the impact of overall video quality of an importance index according to the FMEPI to allocate different number of FEC packets. Our simulation results show that the FMEPI estimation method produces better video reconstruction quality when packet loss occurs.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 firstname.lastname@example.org
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 email@example.com