1 Laboratory of Image Science and Technology, Southeast University, 211514 Nanjing, China 2 Centre de Recherche en Information Biomedicale Sino-Francais (LIA CRIBs), 35000 Rennes, France 3 Laboratoire Traitement du Signal et de lImage (LTSI) INSERM U642, Universite de Rennes I, Campus de Beaulieu, 263 avenue du General Leclerc, CS 74205, 35042 Rennes Cedex, France 4 School of Biomedical Enginee...

Background:  Geographic and doctor-to-doctor variations in care are a focus of quality and safety efforts in medicine. This study addresses factors associated with variation in the rate of operative treatment of de Quervain tendinopathy.   Methods: We used a database including all patient encounters at 2 large medical centers, to study the experience of 10 hand surgeons and 1 physiatrist workin...

Data Assimilation is a methodological framework used in environmental sciences to perform forecasts with complex systems such as meteorological, oceanographic and air quality models. Data Assimilation requires the resolution of a system with three components: one describing the temporal evolution of the state vector, one coupling the observations and the state vector, and one defining the initi...

Introduction: SPECT is a diagnostic imaging technique the main disadvantage of which is the existence of Poisson noise. So far, different methods have been used by scientists to improve SPECT images. The Wavelet Transform is a new method for de-noising which is widely used for noise reduction and quality enhancement of images. The purpose of this paper is evaluation of noise reduction in SPECT ...

In the context of synthetic aperture radar (SAR) image processing a crucial problem is represented by the need to develop accurate models for the statistics of the pixel intensities. In the current research report, we address the problem of parametric probability density function (pdf) estimation for modeling the amplitude distribution for high resolution SAR images. Hitherto, several theoretic...

Cet article propose une nouvelle méthode de suivi d’un objet mobile dans une séquence vidéo. Cette méthode se base d’une part sur la détection de crête [?], [?] et sur le filtre de Kalman [?] d’autre part. L’idée principale est de modéliser un objet par l’histogramme de dérivées d’ordre 2 des points de crête de l’objet. Les dérivées sont calculées selon la direction perpendiculaire à celle de p...

The proteomics approach was adopted to study the simultaneous expression of serum proteins in patients with nasopharyngeal carcinoma (NPC). We have subjected unfractionated whole sera of ten newly diagnosed Malaysian Chinese patients with WHO type III NPC to two-dimensional gel electrophoresis (2-DE) and image analysis. The results obtained were then compared to that generated from sera of ten ...

the length of equal minimal and maximal blocks has eected on logarithm-scale logarithm against sequential function on variance and bias of de-trended uctuation analysis, by using quasi monte carlo(qmc) simulation and cholesky decompositions, minimal block couple and maximal are founded which are minimum the summation of mean error square in horest power.