NDLI: Progressive edge-preserving depth maps coding based on sparse representation

Content Provider	IEEE Xplore Digital Library
Author	Sebai, D. Chaieb, F. Ghorbel, F.
Copyright Year	2012
Description	Author affiliation: CRISTAL Laboratory, National School of Computer Science, University of Manouba, Tunisia (Sebai, D.; Chaieb, F.; Ghorbel, F.)
Abstract	Multiview Video plus Depth coding has received much attention in recent years because of its importance in many different fields, ranging from video games to medical imaging. An efficient coding, that causes the least possible distortion without excessive rate and complexity increase, is crucial particularly for depth maps. In this paper, we propose a coding method that deals with progressive depth maps rendering. Depth images are approximated by a compact representation of sparse coefficients and discrete cosine/B-spline dictionary atoms. To enhance tradeoff between sparsity gain and sharp edges preservation, proposed coding is parameterized using high and low sparsity criteria. Then, selected atoms are structured in layers such that they can be progressively communicated to the decoder side according to consumers capabilities, target applications requirements and transmission channel capacities. Experimental results show the perfomance of the proposed method as compared to some state-of-the-art algorithms.
Starting Page	1
Ending Page	4
File Size	330411
Page Count	4
File Format	PDF
ISBN	9781467349048
ISSN	2161203X
e-ISBN	9781467349055
e-ISBN	9781467349031
DOI	10.1109/3DTV.2012.6365455
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-15
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dictionaries Image coding Atomic layer deposition Matching pursuit algorithms Transforms Adaptive depth maps coding progressivity Encoding Splines (mathematics) discrete cosine/Bspline dictionaries
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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