Color LAR codec: a color image representation and compression scheme based on local resolution adjustment and self-extracting region representation

O Déforges, M Babel, L Bédat… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
We present an efficient content-based image coding called locally adaptive resolution (LAR)
offering advanced scalability at different semantic levels, ie, pixel, block, and region. A local …

Subjective and objective quality evaluation of lar coded art images

C Strauss, F Pasteau, F Autrusseau… - … on Multimedia and …, 2009 - ieeexplore.ieee.org
Quality assessment is of major importance when designing and testing an image/video
coding technique. Compression performances are usually evaluated by means of rate …

Adaptive color decorrelation for predictive image codecs

F Pasteau, C Strauss, M Babel… - 2011 19th European …, 2011 - ieeexplore.ieee.org
When considering color images and more generally multi component images, state of the art
image codecs usually achieve component decorrelation through static color transforms such …

Preserving data integrity of encoded medical images: the LAR compression framework

M Babel, F Pasteau, C Strauss, M Pelcat… - Advances in Reasoning …, 2012 - Springer
Through the development of medical imaging systems and their integration into a complete
information system, the need for advanced joint coding and network services becomes …

Improved colour decorrelation for lossless colour image compression using the LAR codec

F Pasteau, C Strauss, M Babel… - 2009 17th European …, 2009 - ieeexplore.ieee.org
Next generations of still image codecs should not only have to be efficient in terms of
compression ratio, but also propose other functionalities such as scalability, lossy and …

Joint source–channel coding: Secured and progressive transmission of compressed medical images on the Internet

M Babel, B Parrein, O Déforges, N Normand… - … Medical Imaging and …, 2008 - Elsevier
The joint source–channel coding system proposed in this paper has two aims: lossless
compression with a progressive mode and the integrity of medical data, which takes into …

Focus on visual rendering quality through content-based depth map coding

E Bosc, M Pressigout, L Morin - 28th Picture Coding …, 2010 - ieeexplore.ieee.org
Multi-view video plus depth (MVD) data is a set of multiple sequences capturing the same
scene at different viewpoints, with their associated per-pixel depth value. Overcoming this …

The RWHT+ P for an improved lossless multiresolution coding

O Déforges, M Babel, J Motsch - 2006 14th European Signal …, 2006 - ieeexplore.ieee.org
This paper presents a full multiresolution lossless coding method, with advanced semantic
scalability. In particular, a reversible form of the usual Walsh Hadamard Transform (RWHT) …

LAR method: from algorithm to synthesis for an embedded low complexity image coder

O Déforges, M Babel - 2008 3rd International Design and Test …, 2008 - ieeexplore.ieee.org
Embedded image codecs have generally strong constraints in terms of speed, latency and
complexity. We introduce in this paper a dedicated coder implementation of the LAR coding …

LAR-LLC: A low-complexity multiresolution lossless image codec

Y Liu, O Déforges, K Samrouth - IEEE Transactions on Circuits …, 2015 - ieeexplore.ieee.org
This paper presents a new scalable locally adaptive resolution lossless low-complexity (LAR-
LLC) image codec. It is based on the LAR framework that is a multiresolution compression …