Unequal error protection of H.264/AVC video over wireless using hierarchical QAM

被引：0
|
作者：
Chang, Yoong Choon [1 ]
Lee, Sze Wei [1 ]
Komiya, Ryoichi [2 ]
机构：
[1] Multimedia Univ, Fac Engn, Cyberjaya, Selangor, Malaysia
[2] Natl Inst Informat & Commun Technol, Yokosuka, Kanagawa 2390847, Japan
来源：
PROCEEDINGS OF THE NINTH IASTED INTERNATIONAL CONFERENCE ON SIGNAL AND IMAGE PROCESSING | 2007年
关键词：
unequal error protection; H.264/AVC; hierarchical QAM; video over wireless;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, unequal error protection (UEP) of H.264/AVC coded video using hierarchical quadrature amplitude modulation (HQAM), which takes into consideration the non-uniformly distributed importance of intracoded frame (I-frame) and predictive coded frame (P-frame) is proposed. In order to optimally assign the hierarchical QAM high priority (HP) and low priority (LP) bits to the H.264/AVC coded video, a low-complexity optimal allocation algorithm is also proposed. The proposed low-complexity algorithm reduces the computational complexity of the optimal allocation problem, compared with the exhaustive search process. Simulation results demonstrate that our UEP scheme outperforms the conventional UEP scheme.
引用
收藏
页码：248 / +
页数：2
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