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Articles 11101 - 11130 of 12097
Full-Text Articles in Entire DC Network
The Control Point Library Building System, Wayne Niblack
The Control Point Library Building System, Wayne Niblack
LARS Symposia
The Control Point Library Building System (CPLBS) is an interactive, menu driven system which permits a user to accurately identify features in image data by simultaneously viewing a map and a vidicon display of the image data through a Zoom Transfer Scope, extract and store features in disk-resident libraries, and perform utility functions necessary to maintain and update the generated libraries. It was developed to permit the generation of control point libraries needed by the Master Data Processor (MDP) to perform highly accurate geometric corrections to Landsat MSS and RBV earth image data. Both CPLBS and MDP were developed by …
Directed Canonical Analysis And The Performance Of Classifiers Under Its Associated Linear Transformations, Benjamin F. Merembeck, Brian J. Turner
Directed Canonical Analysis And The Performance Of Classifiers Under Its Associated Linear Transformations, Benjamin F. Merembeck, Brian J. Turner
LARS Symposia
Directed canonical analysis is presented as an extension of the general form of canonical analysis, which is a method for reducing the dimensionality of multivariate data sets with minimum loss of discriminatory variance. The reduction takes the form of a linear transformation, y = Cz, that condenses the discriminatory variance onto a relatively few, high-variance, orthogonal discriminant axes.
Canonical analysis is developed as an analog to the one-way MANOVA. The directed extension allows user-specified contrasts to define linear relationships that are known or suspected to exist within the data. The linear transformation, C, is defined by means of the symmetric …
Computer Recognition Of Citrus Infestations, D. H. Williams, J. K. Aggarwal
Computer Recognition Of Citrus Infestations, D. H. Williams, J. K. Aggarwal
LARS Symposia
A computer software system is described that uses digitized color information from aerial color infrared transparencies to detect the a presence of citrus mealybug (Pseudococcus citri Risso), brown soft scale (Coccus hesperidum L.), and Rio Grande gummosis in individual citrus trees. The color coordinates at each spatial point, and color differences at adjacent points are used to locate the trees and to detect the infestations; and compensation is made for the variation in color characteristics between different transparencies. The system requires the input of four parameters: a flag denoting the presence of heavy shadows in the image, nominal tree size …
A Digital Processor For The Production Of Seasat Synthetic Aperture Radar Imagery, John R. Bennett, Ian G. Cumming
A Digital Processor For The Production Of Seasat Synthetic Aperture Radar Imagery, John R. Bennett, Ian G. Cumming
LARS Symposia
With the launch of Seasat-A in June, 1978, the first spaceborne Synthetic Aperture Radar data was made available to the remote sensing community. While the mission only lasted 3+ months, a large volume of SAR data was recorded during this period, and recent image production is beginning to show the remarkable clarity of the data.
Synthetic Aperture Radar processing requires that many hundreds of operations be done per output pixel, and this high computation load has been handled in the past by optical computing techniques. While optical techniques have been very successful, they possess several limitations that digital processing can …
Landsat Mss Data As An Aid To Soil Survey - An Operational Concept, R. A. Weismiller, S. K. Kast, M. F. Baumgardner, Frank R. Kirschner
Landsat Mss Data As An Aid To Soil Survey - An Operational Concept, R. A. Weismiller, S. K. Kast, M. F. Baumgardner, Frank R. Kirschner
LARS Symposia
With the urgency throughout the country to complete the modern soil survey at the earliest possible date, new techniques and tools are being devised to carry out the soils mapping program. One such new mapping tool is a series of maps, derived from Landsat data, showing the spectral characteristics of soils. Whereas Jennings County, Indiana was the first county in the nation to be mapped using aerial photographs as base maps, Jasper County, Indiana is the first county to be mapped using spectral maps as an aid in. the county soil survey program.
These spectral maps depict the pattern and …
Occult - A Medium For Technology Transfer, H. K. Ramapriyan, K. P. Young
Occult - A Medium For Technology Transfer, H. K. Ramapriyan, K. P. Young
LARS Symposia
The National Aeronautics and Space Administration (NASA) has been transferring remote sensing technology to state and local government agencies through the Regional Applications Program since 1977. Typical participants in the program are new to both remote sensing and computer-aided analysis. Therefore, it is essential to introduce them to technology as simply as possible. Two approaches to this are: (i) special purpose minicomputer based (turn key) systems, and (ii) remotely accessed software on general purpose computers. The latter approach facilitates entry into the field with significantly lower costs.
Most of the available software packages for analyzing remotely sensed data require familiarity …
Training Samples For Classification Of Multispectral Earth Observation Data, Marwan J. Muasher, David A. Landgrebe
Training Samples For Classification Of Multispectral Earth Observation Data, Marwan J. Muasher, David A. Landgrebe
LARS Symposia
An important step in the use of pattern recognition methods is the training of the classifier. This work attempts to investigate the effects of some of the parameters contributing towards a correct classification.
Specifically, the effects of the number of training samples, the amount of detail in gray scale, and the degree of separability among classes are investigated. Empirical studies are performed, and results reported showing the interaction among these three parameters. Statistical analysis is performed on the results to determine their significance.
The results suggest that the independence of samples may be of importance in determining the number of …
Image Representation Of Digital Remote Sensing Data: A Perspective, David M. Freeman
Image Representation Of Digital Remote Sensing Data: A Perspective, David M. Freeman
LARS Symposia
Remote sensing data is the main component for determining answers to numerous fundamental questions regarding the earth's environment and resources. Throughout the history of man, he has answered many of these questions with his own human remote sensors. Primary to these sensors are the images obtained by his eyes and interpreted by his brain. Universally, humans guide much of their activity based on images obtained by their eyes. Today, satellites with multispectral scanners take synoptic views of the earth's surface. While computers aid modern interpretation of these reconstructed digital images, humans still obtain much meaningful interpretation by visual inspection combined …
Historical Development Of Computer Science At Purdue University, S. D. Conte
Historical Development Of Computer Science At Purdue University, S. D. Conte
Department of Computer Science Technical Reports
No abstract provided.
Applications Of Classical Recursion Theory To Computer Science, Carl H. Smith
Applications Of Classical Recursion Theory To Computer Science, Carl H. Smith
Department of Computer Science Technical Reports
No abstract provided.
A Simple Experiment In Top-Down Design, Douglas E. Comer, M. H. Halstead
A Simple Experiment In Top-Down Design, Douglas E. Comer, M. H. Halstead
Department of Computer Science Technical Reports
No abstract provided.
The Relationship Between Student Grades And Software Science Parameters, V. Y. Shen
The Relationship Between Student Grades And Software Science Parameters, V. Y. Shen
Department of Computer Science Technical Reports
No abstract provided.
An Inductive Inference Bibliography, Carl H. Smith
An Inductive Inference Bibliography, Carl H. Smith
Department of Computer Science Technical Reports
No abstract provided.
A Programming Language Theorem Which Is Independent Of Peano Arithmetic, Michael O'Donnell
A Programming Language Theorem Which Is Independent Of Peano Arithmetic, Michael O'Donnell
Department of Computer Science Technical Reports
No abstract provided.
On Learning How To Predict, Peter J. Denning
On Learning How To Predict, Peter J. Denning
Department of Computer Science Technical Reports
No abstract provided.
Ellpack Network User's Guide, Ron Boisvert, John Brophy, John R. Rice, John Warner
Ellpack Network User's Guide, Ron Boisvert, John Brophy, John R. Rice, John Warner
Department of Computer Science Technical Reports
No abstract provided.
Matching Tree Patterns, Christoph M. Hoffmann
Matching Tree Patterns, Christoph M. Hoffmann
Department of Computer Science Technical Reports
No abstract provided.
A User's Introduction To The Dual-Mace Operating System, V. Y. Shen, Stephen Tolopka
A User's Introduction To The Dual-Mace Operating System, V. Y. Shen, Stephen Tolopka
Department of Computer Science Technical Reports
No abstract provided.
The Data Management Subsystem Of The System For Performance Evaluation Of Pde Software, J. M. Bonnet, R. F. Boisvert
The Data Management Subsystem Of The System For Performance Evaluation Of Pde Software, J. M. Bonnet, R. F. Boisvert
Department of Computer Science Technical Reports
No abstract provided.
Homogeneous Approximations Of General Queueing Networks, Gianfranco Balbo, Peter J. Dennins
Homogeneous Approximations Of General Queueing Networks, Gianfranco Balbo, Peter J. Dennins
Department of Computer Science Technical Reports
No abstract provided.
Data Security, Dorothy E. Denning, Peter J. Denning
Data Security, Dorothy E. Denning, Peter J. Denning
Department of Computer Science Technical Reports
No abstract provided.
Quantitative Estimates Of Debugging Requirements, Linda M. Ottenstein
Quantitative Estimates Of Debugging Requirements, Linda M. Ottenstein
Department of Computer Science Technical Reports
No abstract provided.
Secure Personal Computing In An Insecure Network, Dorothy E. Denning
Secure Personal Computing In An Insecure Network, Dorothy E. Denning
Department of Computer Science Technical Reports
No abstract provided.
Working Sets Past And Present, Peter J. Denning
Working Sets Past And Present, Peter J. Denning
Department of Computer Science Technical Reports
No abstract provided.
Ellpack 77 Contributor's Guide, John R. Rice
Ellpack 77 Contributor's Guide, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
A Qualitative Justification For A Measure Of Program Clarity, Ronald D. Gordon
A Qualitative Justification For A Measure Of Program Clarity, Ronald D. Gordon
Department of Computer Science Technical Reports
No abstract provided.
3r - A Program To Save Our Nation's Highways, Malcolm D. Graham
3r - A Program To Save Our Nation's Highways, Malcolm D. Graham
Purdue Road School
No abstract provided.
Construction Manpower Planning, Robert L. Groves
Construction Manpower Planning, Robert L. Groves
Purdue Road School
No abstract provided.
Overview Of Liability Of State Highway Departments And Public Officials And Employees For Highway Design, Construction, And Maintenance, Larry W. Thomas
Overview Of Liability Of State Highway Departments And Public Officials And Employees For Highway Design, Construction, And Maintenance, Larry W. Thomas
Purdue Road School
No abstract provided.
Indiana County Seal Coat Operations, Ward Bond
Indiana County Seal Coat Operations, Ward Bond
Purdue Road School
No abstract provided.