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Journal of Electronic Imaging

Image codec for efficient embedded bitstream transmission with low decoder complexity
Author(s): Mandar P. Deolalikar; Nicolaos B. Karayiannis
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Paper Abstract

We describe an image codec based on subband decomposition and vector quantization techniques. Biorthogonal wavelets are used for image decomposition, while encoding relies on multistage, multiclass vector quantization with a tree partitioning algorithm. The codec is evaluated for different images, and the results are compared with the popular set partitioning in hierarchical trees (SPIHT) image codec and with the new JPEG 2000 standard. The experimental evaluation suggests that the proposed codec is competitive with SPIHT and JPEG 2000 for all bit rates, especially for images with medium to high detail content. The proposed codec also provides an embedded bitstream with an asymmetric codec complexity, in that the decoder is less complex than the encoder.

Paper Details

Date Published: 1 January 2006
PDF: 8 pages
J. Electron. Imag. 15(1) 013006 doi: 10.1117/1.2178267
Published in: Journal of Electronic Imaging Volume 15, Issue 1
Show Author Affiliations
Mandar P. Deolalikar, Univ. of Houston (United States)
Nicolaos B. Karayiannis, Univ. of Houston (United States)

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