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Proceedings Paper

A wavelet-based quadtree driven stereo image coding
Author(s): Rafik Bensalma; Mohamed-Chaker Larabi
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Paper Abstract

In this work, a new stereo image coding technique is proposed. The new approach integrates the coding of the residual image with the disparity map. The latter computed in the wavelet transform domain. The motivation behind using this transform is that it imitates some properties of the human visual system (HVS), particularly, the decomposition in the perspective canals. Therefore, using the wavelet transform allows for better perceptual image quality preservation. In order to estimate the disparity map, we used a quadtree segmentation in each wavelet frequency band. This segmentation has the advantage of minimizing the entropy. Dyadic squares in the subbands of target image that they are not matched with other in the reference image constitutes the residuals are coded by using an arithmetic codec. The obtained results are evaluated by using the SSIM and PSNR criteria.

Paper Details

Date Published: 18 February 2009
PDF: 10 pages
Proc. SPIE 7237, Stereoscopic Displays and Applications XX, 72371Z (18 February 2009); doi: 10.1117/12.807253
Show Author Affiliations
Rafik Bensalma, XLIM Lab., CNRS, Univ. of Poitiers (France)
Mohamed-Chaker Larabi, XLIM Lab., CNRS, Univ. of Poitiers (France)

Published in SPIE Proceedings Vol. 7237:
Stereoscopic Displays and Applications XX
Andrew J. Woods; Nicolas S. Holliman; John O. Merritt, Editor(s)

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