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research article

Graph-based representation for multiview image geometry

Maugey, Thomas  
•
Ortega, Antonio
•
Frossard, Pascal  
2015
IEEE Transactions on Image Processing

In this paper, we propose a new representation for multiview image sets. Our approach relies on graphs to describe geometry information in a compact and controllable way. The links of the graph connect pixels in different images and describe the proximity between pixels in the 3D space. These connections are dependent on the geometry of the scene and provide the right amount of information that is necessary for coding and reconstructing multiple views. This multiview image representation is very compact and adapts the transmitted geometry information as a function of the complexity of the prediction performed at the decoder side. To achieve this, our GBR adapts the accuracy of the geometry representation, in contrast with depth coding, which directly compresses with losses the original geometry signal. We present the principles of this graph-based representation (GBR) and we build a complete prototype coding scheme for multiview images. Experimental results demonstrate the potential of this new representation as compared to a depth-based approach. GBR can achieve a gain of 2 dB in reconstructed quality over depth-based schemes operating at similar rates.

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Type
research article
DOI
10.1109/Tip.2015.2400817
Web of Science ID

WOS:000351463700003

ArXiv ID

1312.6090

Author(s)
Maugey, Thomas  
Ortega, Antonio
Frossard, Pascal  
Date Issued

2015

Publisher

Institute of Electrical and Electronics Engineers

Published in
IEEE Transactions on Image Processing
Volume

24

Issue

5

Start page

1573

End page

1586

Subjects

Multiview image coding

•

3D representation

•

view prediction

•

graph-based representation

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTS4  
Available on Infoscience
December 20, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/98637
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