Download or read book Infrared Atmospheric Background Modeling written by Mustafa Sivasligil and published by LAP Lambert Academic Publishing. This book was released on 2009-09 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Fast Model For Computing Infrared Atmospheric Background Effects presents the atmospheric background modeling and the importance of the atmospheric profile during the computations of absorbtion,emission and scattering effects of the atmosphere.This book is focusing the question thay "Is it possible to determine the "effective" height range for the sea level midlatitude clear wheather conditions in the three special wavelength bands,1-3,3-5,8-12 micrometers?The main purpose of this work is to present a fastmodel to shorten the time for the calculations of infrared atmospheric background processes,which will be helpful for the designers of the infrared atmospheric background simulations contributing in various areas of remote sensing and electronic warfare.Furthermore, this book is also useful for the researchers working on the development of infrared systems for the real time applications.

Download or read book A FAST MODEL FOR COMPUTING INFRARED ATMOSPHERIC BACKGROUND EFFECTS written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: M, 3-5 .

Download or read book Infrared Airglow and Contamination Modeling written by and published by . This book was released on 1999 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work performed to evaluate our understanding of infrared (IR) atmospheric phenomenology through comprehensive analysis of spectral and in-band radiance field data. Computer models of atmospheric IR radiation used for these analyses include the standard AFRL codes MODTRAN, SHARC, and SAMM. MODTRAN is a rapid, local thermodynamic equilibrium (LTE) code for low- to moderate-resolution spectra. SHARC calculates emission and transmission spectra in the 2 - 40 micrometers region for arbitrary line-of-sight (LOS) paths between 50 and 300 km for both quiescent and auroral conditions. SAMM is the result of integrating MODTRAN and SHARC into a single, seamless code with a unified and correlated radiative transport algorithm applicable at altitudes from ground to 300 km. Detailed comparisons of the models with spectral and in-band radiance data from the CIRRIS-1A Shuttle experiment demonstrate the predictive capabilities of the background models, as well as the variability of IR atmospheric radiance over time and geographic location. In addition, MODTRAN upgrades which address the data/model comparisons and the investigation into the accuracy of MODTRAN in selected radiation transfer applications are discussed.

Download or read book Background Modeling and Foreground Detection for Video Surveillance written by Thierry Bouwmans and published by CRC Press. This book was released on 2014-07-25 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background modeling and foreground detection are important steps in video processing used to detect robustly moving objects in challenging environments. This requires effective methods for dealing with dynamic backgrounds and illumination changes as well as algorithms that must meet real-time and low memory requirements. Incorporating both established and new ideas, Background Modeling and Foreground Detection for Video Surveillance provides a complete overview of the concepts, algorithms, and applications related to background modeling and foreground detection. Leaders in the field address a wide range of challenges, including camera jitter and background subtraction. The book presents the top methods and algorithms for detecting moving objects in video surveillance. It covers statistical models, clustering models, neural networks, and fuzzy models. It also addresses sensors, hardware, and implementation issues and discusses the resources and datasets required for evaluating and comparing background subtraction algorithms. The datasets and codes used in the text, along with links to software demonstrations, are available on the book’s website. A one-stop resource on up-to-date models, algorithms, implementations, and benchmarking techniques, this book helps researchers and industry developers understand how to apply background models and foreground detection methods to video surveillance and related areas, such as optical motion capture, multimedia applications, teleconferencing, video editing, and human–computer interfaces. It can also be used in graduate courses on computer vision, image processing, real-time architecture, machine learning, or data mining.

Download or read book Atmospheric CO2 Infrared Background Investigation Experimental Confirmation of 2 7 to 4 3 Micrometers Fluorescence Modeling of 4 3 Micrometers Spectral Structure written by J. B. Kumer and published by . This book was released on 1977 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The High Altitude Effects Simulation (HAES) Program compromises several groupings of separate, but interrelated technical activities, e.g., ICECAP (Infrared Chemistry Experiments-Coordinated Auroral Program). Each of the latter have the common objectives of providing information ascertained as essential for the development and validation of predictive computer codes designed for use with high priority DoD radar, communications, and optical defensive systems. Since the inception of the HAES Program, significant achievements and results have been described in reports published by DNA, participating service laboratories, and supportive organizations. This report is the 70th report in the HAES series.

Download or read book An Outline for the RTNEPH Infrared Atmospheric Water Vapor Attenuation Study written by Robert Paul D'Entremont and published by . This book was released on 1989 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Real-Time Nephanalysis (RTNE PH) generates real-time global analysis of cloud extent, base, height, and type. The RTNE PH makes extensive use of satellite data that are measured in the 10-12 micron infrared (IR) window for thermal mapping of clouds and the earth's surface both day and night. Water vapor absorption effects are significant in such data, especially for high viewing angles and tropical atmospheres where water vapor concentrations are generally high. Water vapor attenuates the emitted ground radiance, reducing its magnitude and with it the apparent temperature of the surface being viewed. Currently, the RTNEPH takes into account such attenuation losses using lookup tables that are functions of viewing geometry, time of day, type of background, and the like. However, these corrections have limited value and leave room for significant improvement. This report outlines and presents two new techniques that are expected to enhance the attenuation correction capabilities of the RTNEPH, multivariate polynomial regression (the Weinreb technique) and the correlated K method.

Download or read book Atmospheric Structure Simulation written by James H. Brown and published by . This book was released on 1993 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Models for Infrared Atmospheric Radiation written by Surenda N. Tiwari and published by . This book was released on 1976 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling the Effects of Atmospheric Propagation for Spectral Libraries of Natural Backgrounds written by and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The statistics of natural backgrounds extracted from an Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) hyperspectral datacube collected over Fort AP Hill, VA, were used to demonstrate the effects of the two atmospheric components of a statistical end-to-end performance prediction model. New capabilities in MODTRAN(tm)5 were used to generate coefficients for linear transformations used in the atmospheric transmission and compensation components of a typical end-to-end model. Model radiance statistics, calculated using reflectance data, is found to be similar to the original AVIRIS radiance data. Moreover, if identical atmospheric conditions are applied in the atmospheric transmission and in the atmospheric compensation model components and the effects of sensor noise are disregarded, the resulting reflectance statistics are identical to the original reflectance statistics.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Imaging Infrared written by August J. Huber and published by SPIE-International Society for Optical Engineering. This book was released on 1989 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Background Radiance in Upper Atmosphere written by Hajime Sakai and published by . This book was released on 1980 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work of this contract was intended to develop the atmospheric model which integrates the emission and the scattering term in a combined form and to provide analysis of the earth atmospheric emission data gathered by the SPIRE payload in these two terms. Our work performed throughout the entire period can be divided into five areas: (1) incorporation of various computer programs designed to calculate the atmospheric infrared emission level under a specific condition; (2) improvement of the algorithm employed in these programs; (3) development of an atmospheric infrared radiance model which unifies the emission and scattering term; (4) application and evaluation of the developed model to analysis of the SPIRE data; and (5) evaluation of some preliminary test data for the coming AFGL balloon-borne atmospheric emission measurement experiment.

Download or read book Upper Atmosphere Infrared Radiation Modeling and Analysis written by J. M. Sindoni and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Infrared Characterization of Ground Targets and Backgrounds written by Pieter A. Jacobs and published by SPIE Press. This book was released on 2006 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition updates the technologies that deal with the characterization of the thermal infrared radiation contrast between ground targets and backgrounds. Samples have been updated to comply with the current status of technology in sensor systems and countermeasures. New topics on mine detection and polarization have been included, and the section covering multispectral camouflage of personnel has been extended. The basic principles and meteorological parameters are presented, followed by calibration procedures, signature measurements, and data analyses.

Download or read book Theory Methodology Tools and Applications for Modeling and Simulation of Complex Systems written by Lin Zhang and published by Springer. This book was released on 2016-09-21 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This four-volume set (CCIS 643, 644, 645, 646) constitutes the refereed proceedings of the 16th Asia Simulation Conference and the First Autumn Simulation Multi-Conference, AsiaSim / SCS AutumnSim 2016, held in Beijing, China, in October 2016. The 265 revised full papers presented were carefully reviewed and selected from 651 submissions. The papers in this second volume of the set are organized in topical sections on HMI and robot simulations; modeling and simulation for intelligent manufacturing; military simulation; visualization and virtual reality.

Download or read book Infrared Sea Radiance Modeling Using LOWTRAN 6 written by F. G. Wollenweber and published by . This book was released on 1988 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This model, based on the Cox-Monk wave-slope statistic and the LOWTRAN 6 radiation model, describes the behavior of the sea as an infrared background. The model addresses atmospheric refraction, aerosol absorption and scattering, molecular scattering, emission, and absorption. Comparisons with measurements of a calibrated thermal-imaging system showed good agreement. Keywords: Sea state; Ocean wave shadowing; Emissivity; Reflectivity; Radiance. (edc).

Download or read book Atmospheric Modeling Using PcModWin MODTRAN written by Larry B. Stotts and published by SPIE-International Society for Optical Engineering. This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "MODTRAN® is a powerful tool for atmospheric modeling that can intimidate newcomers. This book guides readers through test cases relevant to their interests and discusses the mathematics and atmospheric physics incorporated in the software. Over the course of eight chapters, readers will (1) devise realistic exercises to apply MODTRAN, (2) correctly set up problems (which is half the task), and (3) solve said problems"--