Sciweavers

Share
ISCAS
2003
IEEE

Content based error detection and concealment for image transmission over wireless channel

9 years 3 months ago
Content based error detection and concealment for image transmission over wireless channel
In this paper, we present a novel content-based image error detection and error concealment algorithm to improve the image quality degraded during its transmission over wireless channel. The damaged image blocks are detected by exploring the contextual information in images, such as their consistency and edge continuity. The statistical characteristics of missing blocks are then estimated based on the types of their surrounding blocks (e.g., smoothness, texture and edge). Finally different error concealment strategies are applied to different types of blocks in order to achieve better visual quality. Instead of assuming random errors in packets, we simulate the errors of wireless channel based on the Rayleigh model. Simulation results demonstrate that our proposed method is effective in terms of visual quality assessment and efficient in terms of computation complexity.
Shuiming Ye, Xinggang Lin, Qibin Sun
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where ISCAS
Authors Shuiming Ye, Xinggang Lin, Qibin Sun
Comments (0)
books