NDLI: Codeblock-Based Concealment Scheme for JPEG2000 Images in Lossy Packet Networks

Content Provider	IEEE Xplore Digital Library
Author	Munadi, K. Fujiyoshi, M. Nishikawa, K. Kiya, H.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Tokyo Metropolitan Univ. (Munadi, K.)
Abstract	JPEG2000 compression standard considers a block of wavelet coefficients, called codeblock, as the smallest coding unit that being independently entropy-coded. In this paper, we propose a codeblock-based concealment technique for JPEG2000 images to mitigate missing codeblock due to packet loss in network transmission. The proposed method creates a single codestream from an image that composed of several subsampled versions of the original image. The technique then substitutes the lost codeblock in a subsampled image with a copy of the corresponding codeblock available in other subsampled images. Thus, it does not require an iterative processing, which is time consuming, to construct an estimated version of the lost data. The proposed method is applicable for a large codeblock size and can be implemented either in wavelet or codestream domain. Simulation results confirm the effectiveness of the proposed method
Starting Page	1847
Ending Page	1850
File Size	363390
Page Count	4
File Format	PDF
ISBN	1424403871
DOI	10.1109/APCCAS.2006.342198
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decoding Wavelet coefficients Transform coding Propagation losses Forward error correction Image coding Code standards Wavelet domain Costs Bandwidth
Content Type	Text
Resource Type	Article

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