LAR Video : Lossless Video Coding with Semantic Scalability

Baptized “LAR Video”, the method proposed in this paper describes a new lossless video coding algorithm with advanced semantic scalability. Motion estimation and compensation steps are undertaken first to produce the well known displaced frame difference (DFD). The basic idea is to apply a pyramidal decomposition to this residual error, based on an efficient scalable image compression technique named LAR-APP. As a result of progressive data broadcasting, the image-sequence can be scalably rebuilt in the decoder at different spatial resolution levels. The given experimental results show that the proposed solution achieves not only scalability but also good compression performances

LAR vidéo: Codage sans perte à scalabilité sémantique

National audienceBaptisé "LAR Video", le schéma proposé dans cet article décrit un nouvel algorithme de compression vidéo sans perte avec scalabilité sémantique. Propre au codage vidéo, une étape d'estimation de mouvement est effectuée afin de produire une image d'erreur résiduelle. L'idée ici est d'appliquer sur cette erreur, une décomposition pyramidale issue d'une méthode de codage scalable d'images fixes, le LAR-APP. Résultantes d'une prédiction inter/intra niveau, les erreurs d'évaluation sont transmises progressivement. Le décodeur peut ainsi reconstruire les images de la séquence de façon scalable par niveau de résolution spatiale. Enfin au vu des résultats obtenus, nous pouvons affirmer que le schéma proposé offre en plus de la scalablité, des performances intéressantes en compression

LAR Video: Hierarchical Representation for Low Bit-Rate Color Image Sequence Coding

LAR video is a low complexity system for low bit-rate color image sequence encoding. It aims to propose a joint solution for coding and representation of the frame content. In particular, it allows to provide a compressed description of both chromatic components and motion information at a region level without region partition encoding. Initialy proposed in the LAR coder, used principle has proved to be efficient for still color image encoding. Resulting from a hierarchical spatio-temporal segmentation, a Partition Tree (PT) is transmitted to the decoder with a controlled coding cost. Presented results show interesting performances considering both content representation and compression ratios

Framework For Efficient Cosimulation And Fast Prototyping on Multi-Components With AAA Methodology: LAR Codec Study Case

pp 1667 - 1671Real-time signal and image applications have significant time constraints involving the use of several powerful calculation units. Programmable multi-component architectures have proven to be a suitable solution combining flexibility and computation power. This paper presents a methodology for the fast design of signal and image processing applications. In a unified framework, application modeling, cosimulation and fast implementation onto parallel heterogeneous architectures are enabled and help to reduce time-to-market. Moreover, automatic code generation provides a high abstraction level for users. Finally, the worthwhile nature of Matlab/C language cosimulation is illustrated on a still image codec named LAR

Extracorporeal cardiopulmonary resuscitation for out-of-hospital refractory cardiac arrest: A word of caution

International audienceRefers To Joseph M. Bednarczyk, Rohit K. Singal Functional outcomes after resuscitative extracorporeal membrane oxygenation for cardiac arrest: The patients speak for themselves The Journal of Thoracic and Cardiovascular Surgery, Volume 150, Issue 4, October 2015, Pages 955-95

Environnement de conception AAA alliant cosimulation et prototypage rapide

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An odyssey of suturing cardiac wounds: Lessons from the past

International audienceBackground and aim of the study Cardiac wounds have been described for centuries and still remain to be fatal. For a long period of time, the suturing of a myocardial laceration was thought to be absolutely impossible if not sacrilege. Methods It is only at the end of the 19th century that pioneers decided to defy such a dogma in desperate cases. Results Nowadays, it seems obvious that a cardiac stab wound requires emergent surgery whenever possible. Conclusions The story of cardiac wounds highlights nicely the change of mind that is required to accept progress and new procedures in medicine

Reply to a brief comment on the past and present of surgical treatment of cardiac wounds

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Cas Clinique : Faux-Anévrismes Du Ventricule Gauche Après Vidéothoracospie : À Propos D'un Cas.

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