Vector Evaluation of Triangulation Camera Parameters from Star Photographs
Vector Evaluation of Triangulation Camera Parameters from Star Photographs

Author: Antonio F. Quesada

Publisher:

Published: 1975

Total Pages: 24

ISBN-13:

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The orientation and focal length of triangulation cameras that are used for observing the motions of chemical tracers deposited in the upper atmoshere can be determined by applying vector and matrix methods. Position measurements on star calibration photographs of as few as five star images yield good estimates of parameter values and their standard deviation. Since the computations require input data from pairs or triplets rather than from individual stars, the stellar data are very efficiently utilized. The methods developed are well suited to implementation on digital data processors. (Author).

Scientific and Technical Aerospace Reports
Scientific and Technical Aerospace Reports

Author:

Publisher:

Published: 1994

Total Pages: 804

ISBN-13:

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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.

High Resolution Stratospheric Winds from Chemical Smoke Trail Experiments at White Sands Missile Range and Wallops Island
High Resolution Stratospheric Winds from Chemical Smoke Trail Experiments at White Sands Missile Range and Wallops Island

Author: Antonio F. Quesada

Publisher:

Published: 1982

Total Pages: 56

ISBN-13:

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This report describes some recent improvements in the hardware and software used to measure photographic images of chemical smoke trails. It also presents measurements of winds and windshears for five experiments conducted at White Sands Missile Range and Wallops Island from 1973 to 1978. In addition, it discusses sources of error in the measurements and suggests means of reducing the errors to improve the vertical resolution of the wind and windshear profiles.

Application of Vector and Matrix Methods to Triangulation of Chemical Releases in the Upper Atmosphere
Application of Vector and Matrix Methods to Triangulation of Chemical Releases in the Upper Atmosphere

Author: Antonio F. Quesada

Publisher:

Published: 1971

Total Pages: 68

ISBN-13:

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The methodology of vector and matrix algebra has been used to simplify the triangulation procedures required to determine the position, motion, and growth of luminescent gas clouds injected into the upper atmosphere. Generated by chemicals discharged from rockets programed to effect point or continuous releases at preselected times, such clouds have proved to be a powerful experimental tool for gathering data relevant to upper atmosphere phenomena such as winds, wind shears, and turbulent transport mechanisms, and the production, maintenance, and decay of ionization in support of specific Air Force requirements in satellite operations, missile detection, and communications. (Author).

Apollo 15: Preliminary Science Report
Apollo 15: Preliminary Science Report

Author: Manned Spacecraft Center (U.S.)

Publisher:

Published: 1972

Total Pages: 588

ISBN-13:

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"The Apollo 15 mission was the first of the Apollo missions to utilize the full capability of a complex set of spacecraft and launch vehicles... provided results that furnish many new insights into lunar history and structure. Perhaps most important of all, this mission provided results that give a meaningful overall picture of the Moon. The scientific endeavors of the Apollo 15 mission can be divided into three distinct kinds of activities: (1) the orbital experiments, 12) the package of lunar-surface experiments, and (3) the surface sampling and observation."--p. xi.

Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision

Author: Richard Hartley

Publisher: Cambridge University Press

Published: 2004-03-25

Total Pages: 676

ISBN-13: 1139449141

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A basic problem in computer vision is to understand the structure of a real world scene given several images of it. Techniques for solving this problem are taken from projective geometry and photogrammetry. Here, the authors cover the geometric principles and their algebraic representation in terms of camera projection matrices, the fundamental matrix and the trifocal tensor. The theory and methods of computation of these entities are discussed with real examples, as is their use in the reconstruction of scenes from multiple images. The new edition features an extended introduction covering the key ideas in the book (which itself has been updated with additional examples and appendices) and significant new results which have appeared since the first edition. Comprehensive background material is provided, so readers familiar with linear algebra and basic numerical methods can understand the projective geometry and estimation algorithms presented, and implement the algorithms directly from the book.

Government Reports Annual Index
Government Reports Annual Index

Author:

Publisher:

Published: 1977

Total Pages: 874

ISBN-13:

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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.