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Author: Rohan Zanje
Publisher:
ISBN:
Category : Multisensor data fusion
Languages : en
Pages : 134
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Book Description
Author: Rohan Zanje
Publisher:
ISBN:
Category : Multisensor data fusion
Languages : en
Pages : 134
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Book Description
Author: Nicolás Esteban Cerna Araya
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
La estimación y el monitoreo de la temperatura superficial del terreno (LST, por sussiglas en inglés) sobre un área es relevante en el estudio de una diversidad de procesos ambientales debido a que es una de las propiedades físicas fundamentales que gobiernan la interacción energética entre la superficie de la Tierra y la atmósfera tanto a escalas locales como globales. Actualmente las mediciones de LST sobre grandes áreas son obtenidas por satélites. Sin embargo, la LST medida de forma remota no posee la resolución temporal requerida para un adecuado seguimiento y análisis de cambios rápidos, cuyo monitoreo es especialmente necesario en la gestión de desastres y en sistemas de alerta temprana de procesos hidrometeorológicos. Por lo tanto, se propone una estrategia de fusión de datos para combinar mediciones de temperatura del aire provenientes de redes inalámbricas de sensores (WSN, por sus siglas en inglés) y mediciones satelitales de LST para realizar estimaciones en tiempo real y predicciones de imágenes de LST con una alta resolución temporal y espacial. El enfoque propuesto incluso puede ser utilizado para reconstruir datos faltantes o para suavizar imágenes de LST que puedan ser de baja resolución debido a efectos de reproyecciones y remuestreo de datos. El método propuesto para la estimación espacio-temporal puede proveer estimaciones de LST cada 15 minutos con un RMSE promedio de 2.21 °C. La estrategia propuesta para la fusión de datos entre WSN y satélites puede ser extendida a otras aplicaciones y no está limitada a la temperatura del aire y mediciones de LST. Considerando que el enfoque puede proporcionar estimaciones de LST entre pasos de satélites e incluso cuando existe cobertura de nubes, el enfoque puede probar ser una herramienta valiosa para futuras investigaciones de monitoreo ambiental e hidrometeorológico.
Author: Hengnian Li
Publisher: Springer
ISBN: 9783662513163
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Geostationary Satellites Collocation aims to find solutions for deploying a safe and reliable collocation control. Focusing on the orbital perturbation analysis, the mathematical foundations for orbit and control of the geostationary satellite. The mathematical and physical principle of orbital maneuver and collocation strategies for multi geostationary satellites sharing with the same dead band is also stressed. Moreover, the book presents some applications using the above algorithms and mathematical models to help readers master the corrective method for planning station keeping maneuvers. Engineers and scientists in the fields of aerospace technology and space science can benefit from this book. Hengnian Li is the Deputy Director of State Key Laboratory of Astronautic Dynamics, China.
Author: Stan Z. Li
Publisher: Springer Science & Business Media
ISBN: 1848002793
Category : Computers
Languages : en
Pages : 372
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Book Description
Markov random field (MRF) theory provides a basis for modeling contextual constraints in visual processing and interpretation. It enables us to develop optimal vision algorithms systematically when used with optimization principles. This book presents a comprehensive study on the use of MRFs for solving computer vision problems. Various vision models are presented in a unified framework, including image restoration and reconstruction, edge and region segmentation, texture, stereo and motion, object matching and recognition, and pose estimation. This third edition includes the most recent advances and has new and expanded sections on topics such as: Bayesian Network; Discriminative Random Fields; Strong Random Fields; Spatial-Temporal Models; Learning MRF for Classification. This book is an excellent reference for researchers working in computer vision, image processing, statistical pattern recognition and applications of MRFs. It is also suitable as a text for advanced courses in these areas.
Author: Alexander A. Kokhanovsky
Publisher: Springer Science & Business Media
ISBN: 3540693971
Category : Science
Languages : en
Pages : 398
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Book Description
Aerosols have a significant influence on the Earth's radiation budget, but there is considerable uncertainty about the magnitude of their effect on the Earth's climate. Currently, satellite remote sensing is being increasingly utilized to improve our understanding of the effect of atmospheric aerosols on the climate system. Satellite Aerosol Remote Sensing Over Land is the only book that brings together in one volume the most up-to-date research and advances in this discipline. As well as describing the current academic theory, the book presents practical applications, utilizing state-of-the-art instrumentation, invaluable to the work of environmental scientists. With contributions by an international group of experts and leaders of correspondent aerosol retrieval groups, the book is an essential tool for all those working in the field of climate change.
Author: Brian D. Wardlow
Publisher: CRC Press
ISBN: 1439835578
Category : Science
Languages : en
Pages : 487
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Book Description
Remote Sensing of Drought: Innovative Monitoring Approaches presents emerging remote sensing-based tools and techniques that can be applied to operational drought monitoring and early warning around the world. The first book to focus on remote sensing and drought monitoring, it brings together a wealth of information that has been scattered throughout the literature and across many disciplines. Featuring contributions by leading scientists, it assembles a cross-section of globally applicable techniques that are currently operational or have potential to be operational in the near future. The book explores a range of applications for monitoring four critical components of the hydrological cycle related to drought: vegetation health, evapotranspiration, soil moisture and groundwater, and precipitation. These applications use remotely sensed optical, thermal, microwave, radar, and gravity data from instruments such as AMSR-E, GOES, GRACE, MERIS, MODIS, and Landsat and implement several advanced modeling and data assimilation techniques. Examples show how to integrate this information into routine drought products. The book also examines the role of satellite remote sensing within traditional drought monitoring, as well as current challenges and future prospects. Improving drought monitoring is becoming increasingly important in addressing a wide range of societal issues, from food security and water scarcity to human health, ecosystem services, and energy production. This unique book surveys innovative remote sensing approaches to provide you with new perspectives on large-area drought monitoring and early warning.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1032
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Book Description
Author: Tom Hope
Publisher: "O'Reilly Media, Inc."
ISBN: 1491978481
Category : Computers
Languages : en
Pages : 242
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Book Description
Roughly inspired by the human brain, deep neural networks trained with large amounts of data can solve complex tasks with unprecedented accuracy. This practical book provides an end-to-end guide to TensorFlow, the leading open source software library that helps you build and train neural networks for computer vision, natural language processing (NLP), speech recognition, and general predictive analytics. Authors Tom Hope, Yehezkel Resheff, and Itay Lieder provide a hands-on approach to TensorFlow fundamentals for a broad technical audience—from data scientists and engineers to students and researchers. You’ll begin by working through some basic examples in TensorFlow before diving deeper into topics such as neural network architectures, TensorBoard visualization, TensorFlow abstraction libraries, and multithreaded input pipelines. Once you finish this book, you’ll know how to build and deploy production-ready deep learning systems in TensorFlow. Get up and running with TensorFlow, rapidly and painlessly Learn how to use TensorFlow to build deep learning models from the ground up Train popular deep learning models for computer vision and NLP Use extensive abstraction libraries to make development easier and faster Learn how to scale TensorFlow, and use clusters to distribute model training Deploy TensorFlow in a production setting
Author: Carlos Borrego
Publisher: Springer Science & Business Media
ISBN: 0387688544
Category : Science
Languages : en
Pages : 750
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Book Description
In 1969 the North Atlantic Treaty Organisation (NATO) established the Committee on Challenges of Modern Society (CCMS). The subject of air pol- tion was from the start, one of the priority problems under study within the fra- work of various pilot studies undertaken by this committee. The organization of a periodic conference dealing with air pollution modeling and its application has become one of the main activities within the pilot study relating to air pollution. The first five international conferences were organized by the United States as the pilot country; the second five by the Federal Republic of Germany; the third five by Belgium; the next four by The Netherlands; and the next five by Denmark; and with this one, the last three by Portugal. th This volume contains the papers and posters presented at the 27 NATO/CCMS International Technical Meeting on Air Pollution Modeling and Its Application held in Banff, Canada, 24-29 October 2004. The key topics at this ITM included: Role of Atmospheric Models in Air Pollution Policy and Abatement Strategies; Integrated Regional Modeling; Effects of Climate Change on Air Quality; Aerosols as Atmospheric Contaminants; New Developments; and Model Assessment and Verification. 104 participants from North and South America, Europe, Africa and Asia attended th the 27 ITM. The conference was jointly organized by the University of Aveiro, Portugal (Pilot Country) and by The University of Calgary, Canada (Host Country). A total of 74 oral and 22 poster papers were presented during the conference.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994
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Book Description
