Robust 2-D Model-Based Object Recognition

Techniques, suitable for parallel implementation, for robust 2D model-based object recognition in the presence of sensor error are studied. Models and scene data are represented as local geometric features and robust hypothesis of feature matchings and transformations is considered. Bounds on the error in the image feature geometry are assumed constraining possible matchings and transformations. Transformation sampling is introduced as a simple, robust, polynomial-time, and highly parallel method of searching the space of transformations to hypothesize feature matchings. Key to the approach is that error in image feature measurement is explicitly accounted for. A Connection Machine implementation and experiments on real images are presented.

Produção de uvas para processamento no sistema de condução Scott Henry, em região tropical do Brasil.

2007

Alien gosd in the new epics: Noah remythologised through the ancient astronaut hypothesis in Abel's Montagut's "La gesta d'Utnoa"

Modern scientific world-view has undermined traditional myths, the functional survival of which seems to depend today in the West on a positivist justification. This would place them in the field of real History, through their study and revitalization by pseudoscientific disciplines such as the Atlantis and the ancient astronaut hypotheses. These have inspired new epic poems in (regular) verse that combine classic and/or biblical myths with a (pseudo)scientific modern world-view. For example, the critical rewriting of Noah’s myth by using the ancient astronaut hypothesis as a fictional device to produce a contemporary kind of plausibility allowed Abel Montagut to renew epic poetry, updating it also by adopting science fiction chronotopes in order to structure his fictional construction and to generate a high ethical sense for our time. Thus, his Poemo de Utnoa (1993) / La gesta d’Utnoa (1996), which has become a major classic of the literature in Esperanto thanks to its original version in this language, is a landmark of both science fiction and neo-biblical epics. This poem is written from a secular and purely literary perspective.

The development of effective biomarkers for Alzheimer's disease:a review

OBJECTIVE: There is a widely recognised need to develop effective Alzheimer's disease (AD) biomarkers to aid the development of disease-modifying treatments, to facilitate early diagnosis and to improve clinical care. This overview aims to summarise the utility of key neuroimaging and cerebrospinal fluid (CSF) biomarkers for AD, before focusing on the latest efforts to identify informative blood biomarkers. DESIGN: A literature search was performed using PubMed up to September 2011 for reviews and primary research studies of neuroimaging (magnetic resonance imaging, magnetic resonance spectroscopy, positron emission tomography and amyloid imaging), CSF and blood-based (plasma, serum and platelet) biomarkers in AD and mild cognitive impairment. Citations within individual articles were examined to identify additional studies relevant to this review. RESULTS: Evidence of AD biomarker potential was available for imaging techniques reflecting amyloid burden and neurodegeneration. Several CSF measures are promising, including 42 amino acid ß-amyloid peptide (Aß(42) ); total tau (T-tau) protein, reflecting axonal damage; and phosphorylated tau (P-tau), reflecting neurofibrillary tangle pathology. Studies of plasma Aß have produced inferior diagnostic discrimination. Alternative plasma and platelet measures are described, which represent potential avenues for future research. CONCLUSIONS: Several imaging and CSF markers demonstrate utility in predicting AD progression and determining aetiology. These require standardisation before forming core elements of diagnostic criteria. The enormous potential available for identifying a minimally-invasive, easily-accessible blood measure as an effective AD biomarker currently remains unfulfilled. Copyright © 2012 John Wiley & Sons, Ltd.

Analysis of underwater acoustic data via 3-D segmentation

The analysis of seabed structure is important in a wide variety of scientific and industrial applications. In this paper, underwater acoustic data produced by bottom-penetrating sonar (Topas) are analyzed using unsupervised volumetric segmentation, based on a three dimensional Gibbs-Markov model. The result is a concise and accurate description of the seabed, in which key structures are emphasized. This description is also very well suited to further operations, such as the enhancement and automatic recognition of important structures. Experimental results demonstrating the effectiveness of this approach are shown, using Topas data gathered in the North Sea off Horten, Norway.

Pseudogynes (=sécrétergates) et répartition des individus à l'intérieur d'une fourmilière de Formica lugubris Zett (Hymenoptera, Formicidae)

Following the discovery of numerous pseudogynes (= secretergates) in a polycalic colony ofFormica lugubris Zett, the author describes the qualitative and quantitative aspects of the distribution of individuals inside the nest. Workers are distributed in three clusters, the first (21 %) could consist of foragers, living in the upper part of the nest, and is distinguished by a low percentage of secretergates (1 %). The two others contain mainly domestic workers. Queens inhabit two areas (intermediate and deep). The percentage of secretergates increases with depth in the nest. Measurements of normal workers and secretergates show that the latter are significantly smaller.

Les Corte-Real et leurs voyages au Nouveau-Monde d'après des documents nouveaux ou peu connus tirés des archives de Lisbonne et de Modène... ; Récit de la troisième expédition de Gaspar Corte-Real ; Gaspar Corte-Real, la date exacte de sa dernière expédition au Nouveau-Monde, d'après deux documents inédits récemment tirés des archives de La Torre do Tombo à Lisbone, dont un écrit et signé par Gaspar Corte-Real, l'autre par son frère Miguel / [publ.] par Henri Harrisse

Collection : Recueil de voyages et de documents pour servir à l'histoire de la géographie depuis le XIIIe jusqu'à la fin du XVIe siècle ; 3

Notice sur un arbre à sucre , découvert en Espagne en 1807, dans les montagnes de Navin, province d'Orensée ; par D. R. Armesto. Traduit de l'espagnol

Mécénat texte imprimé : Cet ouvrage a été numérisé grâce à Axelle Gagnard

Dupin (6e éd.) / par Eugène de Mirecourt

Collection : Les contemporains

Un notaire à marier : comédie-vaudeville en trois actes. [Suivi de] Les rendez-vous bourgeois : opéra bouffon en 1 acte et en prose, mêlé d'ariettes. Livr. 132 / par MM. Marc-Michel, Labiche et A. de Beauplan ; paroles de Hoffmann, musique de Nicolo

Collection : Théâtre contemporain illustré ; 131e et 132e livraisons

Un notaire à marier : comédie-vaudeville en trois actes. [Suivi de] Les rendez-vous bourgeois : opéra bouffon en 1 acte et en prose, mêlé d'ariettes. Livr. 131 / par MM. Marc-Michel, Labiche et A. de Beauplan ; paroles de Hoffmann, musique de Nicolo

Collection : Théâtre contemporain illustré ; 131e et 132e livraisons