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An Intermediate Expressions' Generator System in the MPEG-4 Framework [chapter]

Amaryllis Raouzaiou, Evaggelos Spyrou, Kostas Karpouzis, Stefanos Kollias
2006 Lecture Notes in Computer Science  
In this paper, we present a system which generates intermediate expression profiles (set of FAPs) combining profiles of the six archetypal expressions, by utilizing concepts included in the MPEG-4 standard  ...  An expressive, realistic avatar should not "express himself" in the narrow confines of the six archetypal expressions.  ...  MPEG-4 and Emotion Representation In the framework of MPEG-4 standard [8] , parameters have been specified for Face and Body Animation (FBA) by defining specific Face and Body nodes in the scene graph  ... 
doi:10.1007/11738695_18 fatcat:47avn7ppsjdnja7yvsrfeu6xea

Emotional face expression profiles supported by virtual human ontology

A. García-Rojas, F. Vexo, D. Thalmann, A. Raouzaiou, K. Karpouzis, S. Kollias, L. Moccozet, N. Magnenat-Thalmann
2006 Computer Animation and Virtual Worlds  
Expressive facial animation synthesis of human like characters has had many approaches with good results. MPEG-4 standard has functioned as the basis of many of those approaches.  ...  In this paper we would like to lay out the knowledge of some of those approaches inside an ontology in order to support the modeling of emotional facial animation in virtual humans (VH).  ...  ACKNOWLEDGEMENTS This research has been funded by the EC and the Swiss Federal Office for Education and Science in the framework of the European Networks of Excellence IST-HUMAINE (http://emotionresearch.net  ... 
doi:10.1002/cav.130 fatcat:kaf6i5r26fdcxjazhkylogppha

A portable Video Tool Library for MPEG Reconfigurable Video Coding using LLVM representation

J. Gorin, M. Wipliez, F. Preteux, M. Raulet
2010 2010 Conference on Design and Architectures for Signal and Image Processing (DASIP)  
Therefore, an ADM of an MPEG decoder corresponds in MPEG RVC to a network of FUs taken from the VTL.  ...  MPEG Reconfigurable Video Coding (RVC) represents the last answer of MPEG to overcome the lack of interoperability between codecs deployed in the market nowadays.  ...  The MPEG RVC framework [2] is under development as part of the MPEG-B standard [3] , which describes the framework and the language it uses; and as part of the MPEG-C standard [4] , which defines the  ... 
doi:10.1109/dasip.2010.5706263 dblp:conf/dasip/GorinWPR10 fatcat:rxf4qj6bfja5dhtv3r3uj4wge4

An LLVM-based decoder for MPEG Reconfigurable Video Coding

J. Gorin, M. Wipliez, J. Piat, F. Preteux, M. Raulet
2010 2010 IEEE Workshop On Signal Processing Systems  
RVC-CAL naturally expresses potential parallelism between tasks of an application, which makes an ADM description suitable for implementation to a wide variety of platform, from uniprocessor systems to  ...  This decoder, unlike static decoders generated by RVC tools [2], keeps de facto the features of an RVC description namely portability, scalability and reconfiguration ability.  ...  The FUs currently available in MPEG-C are the coding tools from MPEG-4 Part-2 Simple Profile (SP) and MPEG-4 Advanced Video Coding (AVC) standards.  ... 
doi:10.1109/sips.2010.5624767 fatcat:hsye3owa5jdzvm7okr573wmlcu

Code generation for the MPEG Reconfigurable Video Coding framework: From CAL actions to C functions

Matthieu Wipliez, Ghislain Roquier, Mickael Raulet, Jean-Francois Nezan, Olivier Deforges
2008 2008 IEEE International Conference on Multimedia and Expo  
In the RVC framework, a decoder is build in a modular manner as a configuration of video tools taken from the MPEG toolbox library.  ...  Code generators are fundamental supports for the deployment and success of the MPEG RVC framework.  ...  FRAMEWORK Scope The MPEG RVC framework is currently under development by MPEG as the part of MPEG-B and MPEG-C standards.  ... 
doi:10.1109/icme.2008.4607618 dblp:conf/icmcs/WipliezRRND08 fatcat:kesnc5qkc5ahzmqaitpukjm64q

MPEG-4 facial expression synthesis

L. Malatesta, A. Raouzaiou, K. Karpouzis, S. Kollias
2007 Personal and Ubiquitous Computing  
The current work will describe an approach to synthesize expressions, including intermediate ones, via the tools provided in the MPEG-4 standard based on real measurements and on universally accepted assumptions  ...  MPEG-4 FAPs and action units are combined in modeling the effects of appraisal checks on facial expressions and temporal evolution issues of facial expressions are investigated.  ...  Acknowledgments This research is partly supported by the EC Project HUMAINE (IST-507422).  ... 
doi:10.1007/s00779-007-0164-1 fatcat:znzwgofuibhrzejqalesdt4lpa

LLVM-based and scalable MPEG-RVC decoder

Jérôme Gorin, Matthieu Wipliez, Françoise Prêteux, Mickaël Raulet
2010 Journal of Real-Time Image Processing  
RVC-CAL naturally expresses potential parallelism between tasks of an application, which makes an ADM description suitable for implementation to a wide variety of platforms, from uniprocessor systems to  ...  This decoder, unlike static decoders generated by RVC tools, keeps de facto the features of an RVC description namely portability, scalability and reconfigurability.  ...  Intermediate Representation One of the key factors that differentiate LLVM from other systems is the intermediate representation it uses.  ... 
doi:10.1007/s11554-010-0169-2 fatcat:xi5vmby4rjekhifqftazsbacai

Software synthesis of CAL actors for the MPEG reconfigurable Video Coding framework

Ghislain Roquier, Matthieu Wipliez, Mickael Raulet, Jean-Francois Nezan, Olivier Deforges
2008 2008 15th IEEE International Conference on Image Processing  
In this framework, a decoder is modularly built as a configuration of video coding tools taken from the MPEG toolbox library. The elements of the library are specified using the CAL Actor Language.  ...  Indeed, code generators are fundamental supports for the deployment and success of the MPEG RVC framework. This paper focuses on the automatic translation of a CAL actor.  ...  This allows seamless translation of expressions and types. C code is generated by calling the pretty-printer included in the framework.  ... 
doi:10.1109/icip.2008.4712028 dblp:conf/icip/RoquierWRND08 fatcat:pqwjux236vfxfpehp5dloshzjm

Expressive MPEG-4 Facial Animation Using Quadratic Deformation Models

Mohammad Obaid, Ramakrishnan Mukundan, Mark Billinghurst, Catherine Pelachaud
2010 2010 Seventh International Conference on Computer Graphics, Imaging and Visualization  
In this paper we propose an approach compliant with the MPEG-4 standard to synthesize and control facial expressions generated using 3D facial models.  ...  The FAP values for an expression E are computed by performing a linear mapping between a set of transformed MPEG-4 FAP points (using quadratic deformation models) and the 3D facial model semantics.  ...  ACKNOWLEDGEMENTS Research conducted was partly funded through the FRST Grant UOCX0608 and is part of the EU FP6 Integrated Project CALLAS IP-CALLAS IST-034800.  ... 
doi:10.1109/cgiv.2010.11 fatcat:spm4olcbyvahvh2utdsmuw7gte

Video-Based Sign Language Content Annotation by Incorporation of MPEG-7 Standard [chapter]

Rashad Aouf, Steve Hansen
2005 Lecture Notes in Computer Science  
The advanced progress in multimedia technology increases the demand on delivering effective content in term of quality with the ability to describe content.  ...  It also describes a systematic approach derived from the MPEG-7 multimedia content description standard to annotate sign language information. A new approach is proposed by this paper.  ...  The server contains 4 modules: MPEG-7 Framework, AV Storage System, User Information Storage System, and Intermediate Signage Object Generation.  ... 
doi:10.1007/11531371_32 fatcat:tsxmx5s6pvapnikuz6r5i4lrtu

Reconfigurable video coding

Jörn W. Janneck, Marco Mattavelli, Mickael Raulet, Matthieu Wipliez
2010 Proceedings of the first annual ACM SIGMM conference on Multimedia systems - MMSys '10  
The upcoming Reconfigurable Video Coding (RVC) standard currently developed at MPEG attempts to address these issues by building a framework that supports the construction of video standards as libraries  ...  This paper presents the RVC framework and its underlying dataflow programming model, along with the tool support and initial results.  ...  to an Intermediate Representation (IR), (4) serializes each actor in IR form to a file.  ... 
doi:10.1145/1730836.1730864 dblp:conf/mmsys/JanneckMRW10 fatcat:5stvtb4ghfgtnezviir4qgffl4

Synthesizing hardware from dataflow programs: An MPEG-4 simple profile decoder case study

Jorn W. Janneck, Ian D. Miller, David B. Parlour, Ghislain Roquier, Matthieu Wipliez, Mickael Raulet
2008 2008 IEEE Workshop on Signal Processing Systems  
Results on a real design case, a MPEG-4 Simple Profile decoder, show that systems obtained with the hardware code generator outperform the hand written VHDL version both in terms of performance and resource  ...  The design framework is composed by a simulation platform and by Cal2C and CAL2HDL code generators.  ...  C code is generated by calling the pretty-printer module included in the framework. An example of the CAL actor code translation process is illustrated on figure 4 .  ... 
doi:10.1109/sips.2008.4671777 dblp:conf/sips/JanneckMPRWR08 fatcat:ev5nhvqmunauzhjveqbzke2ehq

A Fuzzy System For Emotion Classification Based On The Mpeg-4 Facial Definition Parameter Set

Nicolas Tsapatsoulis, Kostas Karpouzis, George Stamou, Frederic Piat, S. Kollias
2000 Zenodo  
Publication in the conference proceedings of EUSIPCO, Tampere, Finland, 2000  ...  The establishment of the MPEG standards, and especially MPEG-4, indicate an alternative way of analyzing and modeling facial expressions and related emotions [1] .  ...  CONCLUSION In this study we have shown that the FAP and FDP sets of MPEG-4 standard, accompanied with a fuzzy inference system, provide an efficient means for the recognition of emotions.  ... 
doi:10.5281/zenodo.37605 fatcat:fpy3yvyerfc4xlxecc4s6cvahu

Mapping Audiovisual Metadata Formats Using Formal Semantics [chapter]

Martin Höffernig, Werner Bailer, Günter Nagler, Helmut Mülner
2011 Lecture Notes in Computer Science  
The high-level intermediate concept representation is based on the existing meon ontology and the resulting mapping instructions are expressed using XSLT.  ...  In this work we attempt to model mappings between metadata formats based on a high-level intermediate concept representation in order to avoid hand-crafted one-to-one mappings between metadata formats.  ...  Acknowledgments The research leading to this paper was partially supported by the European Commission under the ICT contract FP7 231161, "PrestoPRIME" (http:// www.prestoprime.eu).  ... 
doi:10.1007/978-3-642-23017-2_6 fatcat:svgtrm5curahzgz3hlzt4qsbvm

Automated generation of an efficient MPEG-4 Reconfigurable Video Coding decoder implementation

Ruirui Gu, Jonathan Piat, Mickael Raulet, Jorn W. Janneck, Shuvra S. Bhattacharyya
2010 2010 Conference on Design and Architectures for Signal and Image Processing (DASIP)  
in The Dataflow interchange format Package (TDP).  ...  This paper proposes an automatic design flow from userfriendly design to efficient implementation of video processing systems.  ...  The MPEG RVC framework is currently under development in MPEG as part of the MPEG-B part 4 [12] and MPEG-C part 4 [13] standards.  ... 
doi:10.1109/dasip.2010.5706274 dblp:conf/dasip/GuPRJB10 fatcat:dc2ui2ya3nh7rauukzi3rnnjme
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