Object-Based Greenhouse Classification from GeoEye-1 and WorldView-2 Stereo Imagery

Remote sensing technologies have been commonly used to perform greenhouse detection and mapping. In this research, stereo pairs acquired by very high-resolution optical satellites GeoEye-1 (GE1) and WorldView-2 (WV2) have been utilized to carry out the land cover classification of an agricultural area through an object-based image analysis approach, paying special attention to greenhouses extraction. The main novelty of this work lies in the joint use of single-source stereo-photogrammetrically derived heights and multispectral information from both panchromatic and pan-sharpened orthoimages. The main features tested in this research can be grouped into different categories, such as basic spectral information, elevation data (normalized digital surface model; nDSM), band indexes and ratios, texture and shape geometry. Furthermore, spectral information was based on both single orthoimages and multiangle orthoimages. The overall accuracy attained by applying nearest neighbor and support vector machine classifiers to the four multispectral bands of GE1 were very similar to those computed from WV2, for either four or eight multispectral bands. Height data, in the form of nDSM, were the most important feature for greenhouse classification. The best overall accuracy values were close to 90%, and they were not improved by using multiangle orthoimages

IOBSERVER: species recognition via computer vision

This paper is about the design of an automated computer vision system that is able to recognize the species of fish individuals that are classified into a fishing vessel and produces a report file with that information. This system is called iObserver and it is a part of project Life-iSEAS (Life program).A very first version of the system has been tested at the oceanographic vessel “Miguel Oliver”. At the time of writing a more advanced prototype is being tested onboard other oceanographic vessel: “Vizconde de Eza”. We will describe the hardware design and the algorithms used by the computer vision software.Peer Reviewe

Coordinación global basada en controladores locales reactivos en la RoboCup

Actas del Primer Workshop Hispano-Luso en Agentes Físicos, Tarragona, 12/13-X-2000El principal problema a que nos enfrentamos al diseñar sistemas multi-agente es cómo coordinar los agentes que pertenecen a este sistema para obtener un comportamiento global eficiente. En algunos trabajos, el comportamiento coordinado de los agentes se obtiene gracias a un conocimiento total del dominio en el que se pueden aplicar planificadores tradicionales. Sin embargo, en muchos dominios esta aproximación no es posible por tratarse de dominios demasiado grandes y la comunicación y capacidad de memoria de los agentes muy limitada. En este trabajo se presenta un diseño multi-agente que permite obtener un comportamiento global coordinado basado en los comportamientos reactivos de los agentes que son controlados o dirigidos por la información local que poseen. En el diseño se ha minimizado la comunicación entre los agentes, ya que el proceso de coordinación se basa en reglas locales reactivas. Esta propuesta tiene una primera aplicación en el dominio de la RoboCup (Robot World Cup Iniciative), proyecto ampliamente utilizado por la comunidad investigadora. Palabras Clave: Inteligencia artificial distribuida, sistemas multi-agente, comportamientos cooperativos, comportamientos reactivos, RoboCupComisión Interministerial de Ciencia y TecnologíaRed Temática EUROBOT-IBEscola Técnica Superior d'Enginyeria (ETSE)Grup de Robótica i Visió Intel•ligents (RIVI)Departament d'Enginyeria Electrónica, Eléctrica i Automática (DEEEA)Departament d'Enginyeria Informática i Matemática (DEIM)Publicad

Cooperación en sistemas distribuidos de robots reactivos minimizando la cantidad de información comunicada

Actas de: Simposio Español de Infomática Distribuida (SEID 2000), Ourense, 25-27 de septiembre de 2000La coordinación emergente pretende obtener comportamientos colaborativos entre diversos agentes sin que eso implique que cada individuo deba tener un conocimiento global del dominio, y sin que ese conocimiento deba estar centralizado. Al no requerir conocimiento global, se minimiza la comunicación entre los agentes de forma que cada uno de ellos puede comportarse de forma reactiva y totalmente autónoma. En este trabajo se presenta una primera aproximación a este modelo de coordinación aplicado al dominio de la RoboCup.Publicad

ANALGESIA PREVENTIVA: USO DE DEXTROMETORFANO VIA ORAL E INFILTRACION CON LIDOCAINA SIMPLE PARA CONTROL DE DOLOR POSTOPERATORIO EN PACIENTES SOMETIDOS A CIRUGIA ABDOMINAL

El presente trabajo fue de realizado en el Hospital de la Cruz Roja Mexicana desde el 1 de marzo de 2010 hasta el 30 de agosto de 2010, con un universo, reflejado en el paciente quirúrgicos con ASAI-ASAII, con una muestra de 32 pacientes para cirugía de abdomen. Se dividieron en dos grupos: En el grupo I (Grupo Control) con 16 pacientes y en el grupo II con 16 pacientes. La analgesia en el posquirúrgico se valoro con dos escalas de dolor las cuales destacaron en el lapso de 24 horas en diferentes horas al ingreso a la sala de recuperación y luego a las 4, 8,16 y 24 horas. En el lapso de 24 horas El grupo 2 alcanzo EVA 6 en un 37.5% y el grupo 1 manejo hasta EVA 3 en un 31.25%. La desviación estándar en el grupo 1 alcanzo 0.23 y el grupo 2 alcanzo 5, en un punto crítico

Evolution of the Riparian forest corridor in a large Mediterranean river system

The well-documented re-colonisation of the French large river basins of Loire and Rhone by European otter and beaver allowed the analysis of explanatory factors and threats to species movement in the river corridor. To what extent anthropogenic disturbance of the riparian zone influences the corridor functioning is a central question in the understanding of ecological networks and the definition of restoration goals for river networks. The generalist or specialist nature of target species might be determining for the responses to habitat quality and barriers in the riparian corridor. Detailed datasets of land use, human stressors and hydro-morphological characteristics of river segments for the entire river basins allowed identifying the habitat requirements of the two species for the riparian zone. The identified critical factors were entered in a network analysis based on the ecological niche factor approach. Significant responses to riparian corridor quality for forest cover, alterations of channel straightening and urbanisation and infrastructure in the riparian zone are observed for both species, so they may well serve as indicators for corridor functioning. The hypothesis for generalists being less sensitive to human disturbance was withdrawn, since the otter as generalist species responded strongest to hydro-morphological alterations and human presence in general. The beaver responded the strongest to the physical environment as expected for this specialist species. The difference in responses for generalist and specialist species is clearly present and the two species have a strong complementary indicator value. The interpretation of the network analysis outcomes stresses the need for an estimation of ecological requirements of more species in the evaluation of riparian corridor functioning and in conservation planning

Catalytic addition of C–H bonds across C–C unsaturated systems promoted by iridium(i) and its group IX congeners

Transition metal-catalyzed hydrocarbonations of unsaturated substrates have emerged as powerful synthetic tools for increasing molecular complexity in an atom-economical manner. Although this field was traditionally dominated by low valent rhodium and ruthenium catalysts, in recent years, there have been many reports based on the use of iridium complexes. In many cases, these reactions have a different course from those of their rhodium homologs, and even allow performing otherwise inviable transformations. In this review we aim to provide an informative journey, from the early pioneering examples in the field, most of them based on other metals than iridium, to the most recent transformations catalyzed by designed Ir(I) complexes. The review is organized by the type of C–H bond that is activated (with C sp2, sp or sp3), as well as by the C–C unsaturated partner that is used as a hydrocarbonation partner (alkyne, allene or alkene). Importantly, we discuss the mechanistic foundations of the methods highlighting the differences from those previously proposed for processes catalyzed by related metals, particularly those of the same group (Co and Rh)This work received financial support from Spanish grants (SAF2016-76689-R, CTQ2016-77047-P, CTQ2017-84767-P and ORFEO-CINQA network CTQ2016-81797-REDC), the Consellería de Cultura, Educación e Ordenación Universitaria (2015-CP082, ED431C-2017/19 and Centro Singular de Investigación de Galicia accreditation 2019–2022, ED431G 2019/03), the European Union (European Regional Development Fund-ERDF corresponding to the multiannual financial framework 2014–2020), and the European Research Council (Advanced Grant No. 340055). DFF thanks Xunta de Galicia for his postdoctoral fellowship (ED481B-2019-005)S