An Improved Spatial Error Concealment Algorithm Based on H.264

被引：2
|
作者：
Yi Jin-wang [1 ]
Cheng En [1 ]
Yuan Fei [1 ]
机构：
[1] Xiamen Univ, Minist Educ, Key Lab Underwater Acoust Commun & Marine Informa, Xiamen, Fujian, Peoples R China
来源：
2009 THIRD INTERNATIONAL SYMPOSIUM ON INTELLIGENT INFORMATION TECHNOLOGY APPLICATION, VOL 3, PROCEEDINGS | 2009年
关键词：
sptial error concealment; weighted pixel average; directional interpolation; directional entropy; image recovery;
D O I：
10.1109/IITA.2009.451
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The losses of packets are inevitable when the video is transported over error-prone networks. Error concealment methods can reduce the quality degradation of the received video by masking the effects of such errors. This paper presents a novel spatial error concealment algorithm based on the directional entropy in the available neighboring Macro Blocks (MBs), which can adaptively switch between weighted pixel average (WPA) adopted in H.264 and an improved directional interpolation algorithm to recover the lost MBs. In this work, the proposed algorithm was evaluated on H.264 reference software JM8.6. The illustrative examples demonstrate that the proposed method can achieve better Peak to Signal-to-Noise Ratio (PSNR) performance and visual quality, compared with WPA and the conventional directional interpolation algorithm respectively.
引用
收藏
页码：455 / 458
页数：4
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