Paper Info
Title
Passive Error Concealment for Wavelet Coded Images with Efficient Reconstruction of High-Frequency Content
Abstract
Real time image and video communication in packet switched networks suffers severely from packet loss. When using a dispersive packetization, i.e., spreading neighboring pixel data or coefficients over different packets, the lost data can be estimated from its correctly received neighbors. This paper presents a novel locally adaptive error concealment method for subband coded images. In the proposed method, we reconstruct a, lost coefficient partially from its horizontal and partially from its vertical neighboring coefficients. We also estimate the optimal interpolation weights from the neighborhood of the lost coefficient. The proposed method outperforms state-of-the-art methods of similar and higher complexity. Especially, the high-frequency coefficients are reconstructed much better, resulting in better reconstruction of textures and edges. The results demonstrate a significant improvement of visual quality compared to recent related methods.
Year
DOI
Venue
2008
10.1007/978-3-540-88458-3_2
ADVANCED CONCEPTS FOR INTELLIGENT VISION SYSTEMS, PROCEEDINGS
Keywords
Field
DocType
subband coding,high frequency,packet loss
Error concealment,Computer vision,Computer science,Interpolation,Network packet,Packet loss,Pixel,Artificial intelligence,Packet switched,Bilinear interpolation,Wavelet
Conference
Volume
ISSN
Citations 
5259
0302-9743
0
PageRank 
References 
Authors
0.34
11
3
Name
Order
Citations
PageRank
Joost Rombaut1111.61
Aleksandra Pizurica21238102.29
Wilfried Philips311510.61