Digital Commons Network^™

Extraction And Classification Of Objects In Multispectral Images, Thomas V. Robertson

LARS Symposia

Presented here is an algorithm that partitions a digitized multispectral image into parts that correspond to objects in the scene being sensed. The algorithm partitions an image into successively smaller rectangles and produces a partition that tends to minimize a criterion function.

Supervised an~ unsupervised classification techniques can be applied to partitioned images. This partition- then-classify approach is used to process images sensed from aircraft and the ERTS-1 satellite, and the method 1s shown to give relatively accurate results in classifying agricultural areas and extracting urban areas.

A Computer Recognition Of Bridges, Islands, Rivers And Lakes From Satellite Pictures, Ruzena Bajcsy, Mohamad Tavakoli

LARS Symposia

This paper describes a computer program which recognizes bridges, rivers, islands and lakes from satellite pictures. The program is structured into three basic parts: the world model, the low level operators, and the higher level program. The recognition process is conceived as a process of continuously refined verification of the hypothesized descriptions of objects. We use conceptual identification of objects during the recognition process as soon as we can; we equip these concepts with meanings in the three-dimensional world. We present several concrete examples as a demonstration of the capabilities of our program.

Parallel Algorithms For Adaptive Quadrature - Convergence, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Specification And Design Of An Information System Using Computer Aided Analysis, J. F. Nunamaker

Department of Computer Science Technical Reports

No abstract provided.

A Study Of Decompiling Machine Language Into High-Level Machine Independent Languages, Barron Cornelius Housel

Department of Computer Science Technical Reports

No abstract provided.

Magnetic Tape Portability, James Alf Iverson

Department of Computer Science Technical Reports

No abstract provided.

Sanitary Landfill Method Of Solid Waste Disposal, John M. Bell

Purdue Road School

No abstract provided.

Research On Environmental Factors Affecting Human Behavior, Gerson J. Alexander

Purdue Road School

No abstract provided.

Herpic Progress Report 1959-1972, William H. Goetz

Purdue Road School

No abstract provided.

The Highway Safety Program And The Traffic Engineer, H. Milton Heywood

Purdue Road School

No abstract provided.

Segmental Precast Concrete Bridges, Brice F. Bender

Purdue Road School

No abstract provided.

Small City Traffic Improvements Developed From Accident Analysis, Paul C. Box

Purdue Road School

No abstract provided.

An Evaluation Methodology For The Selection Of An Interchange Configuration : Technical Paper, Thomas Ernest Mulinazzi, Gilbert T. Satterly

JTRP Technical Reports

No abstract provided.

Compacted Cohesive Test Embankment: Design, Installation And Operation Of Field Instrumentation : Interim Report, Wiiliam L. Degroff

JTRP Technical Reports

No abstract provided.

Statewide Survey Of Blowups In Resurfaced Concrete Pavements : Interim Report, Paul Thomas Foxworthy

JTRP Technical Reports

No abstract provided.

Land Use Development At Interstate Interchanges In Indiana, Lawrence Peter Fabbroni

JTRP Technical Reports

No abstract provided.

Mechanical Behavior And Reinforcement Of Mineral Filler-Asphalt Mixtures : Technical Paper, David Albert Anderson, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Kinetics Of Calcite Dissolution, Larry Chester Muszynski

JTRP Technical Reports

No abstract provided.

Guidelines For The Selection Of An Interchange Configuration, Thomas Ernest Mulinazzi

JTRP Technical Reports

No abstract provided.

The Specific Surface Of Hardened Portland Cement Paste As Measured By Low-Angle X-Ray Scattering, Douglas Windslow

JTRP Technical Reports

No abstract provided.

Traffic Speed Report No. 90 : Progress Report, Wing-Kwong Law, George K. Stafford, Bronson Luttrell

JTRP Technical Reports

No abstract provided.

Analysis Research For Earth Resource Information Systems: Where Do We Stand?, David A. Landgrebe

LARS Technical Reports

For a decade or more research has been conducted which is intended to lead to the design of operational earth resource information systems. Clearly this research has not yet been completed. It does seem to be far enough along however, that an assessment relevant to future operational activities might well be possible and beneficial. In this paper a model operational system will be discussed not so much as a proposal for an actual system, but merely as a viable objective upon which to focus the research. Possible system configurations and constraints will be noted, and the trend in the cost …

Urban Land Use Monitoring From Computer-Implemented Processing Of Airborne Multispectral Sensor Data, William J. Todd, Paul W. Mausel, Marion F. Baumgardner

LARS Technical Reports

A significant portion of the budget of every city and county planning agency is allocated to the collection of land use data. A planning agency must have information pertinent to a variety of users. Often these information systems are costly, require many people, and are slow.

The purpose of this research is to investigate the alternative of using computer-implemented analysis of airborne multispectral scanner data to monitor urban land use. This monitoring should require a limited amount of human intervention. Computer-generated results from multispectral data can be ready for city and county officials to use within 24 hours after the …

Sun Angle Effect Preprocessing With Predicted Ramp Functions, David F. Strahorn, Paul E. Anuta

LARS Technical Reports

Among the many factors affecting the LARS multispectral scanner data is the geometric interaction of the sensor look angle and solar illumination angle. One of these interactions is quite well known to many LARS researchers as the "sun-angle" effect to some and solar ramping or just ramping to others. Ramping is the in mean scanner response as a function of scanner look angle for a given data set; or, the change in column mean from column to column for a given run.

An Evaluation Of Machine Processing Techniques Of Erts-1 Data For User Applications, David Landgrebe

LARS Technical Reports

For some years research has been underway to learn how to use computing machines for the processing and analysis of remotely sensed data. The motivation of this work is not to produce an automatic analysis system, but to utilize computing machinery for the repetitive and routine aspects of the total analysis and processing problem in order to minimize the costs and increase the throughput rate.

Adp Of Multispectral Scanner Data For Land Use Mapping, Roger M. Hoffer

LARS Technical Reports

The need has long existed for a capability to obtain reliable information over large geographic areas in a timely manner. Such a need is present in many discipline areas. The past few years have seen a marked increase in the awareness of our needs for accurate land use planning, and the accompanying realization that our existing capability to obtain accurate and up-to-date land use information is not adequate to meet society's current and future needs. Because of the very rapid changes in the condition of agricultural crops and the influence of crop yield predictions on the world market, the need …

Mapping Soil Associations Using Erts Mss Data, J. E. Cipra

LARS Technical Reports

Multispectral imagery from ERTS was compared to a soil association map of Tippecanoe County, Indiana, based on a conventional field survey. Three methods of processing single and multiple wavelength bands were applied to imagery collected on three dates. Correction of geometric distortions in computer-processed imagery was investigated. Four to six groupings of soil associations could be delineated on ERTS imagery. Some associations were more readily delineated using visible wavelengths, some more readily delineated using infrared wavelengths. In general, MSS band 7 was found to give more soils information than MSS band 5. Imagery of single wavelength bands displayed on a …

Machine Boundary Finding And Sample Classification Of Remotely Sensed Agricultural Data, J. N. Gupta, R. L. Kettig, D. A. Landgrebe, P. A. Wintz

LARS Technical Reports

Initially, methods for analyzing earth observational data involved the use of only spectral variations measured from the scene. The work reported in this paper provides a method for making some use of spatial variations as well. The results of some preliminary tests of this new method show significant improvements in accuracy.

A Linear Shift-Invariant Image Preprocessing Technique For Multispectral Scanner Systems, C. D. Mcgillem, T. E. Riemer

LARS Technical Reports

A linear shift-invariant image preprocessing technique is examined which requires no specific knowledge of any parameter of the original image and which is sufficiently general to allow the effective radius of the composite imaging system to be arbitrarily shaped and reduced, subject primarily to the noise power constraint. In addition, the size of the point-spread function of the preprocessing filter can be arbitrarily controlled, thus minimizing truncation errors.

Automatic Boundary And Sample Classification Of Remotely Sensed Multispectral Data, R. L. Kettig, D. A. Landgrebe

LARS Technical Reports

Presently, automatic classification of multispectral data images is most commonly effected on a point-by-point basis, as if the data vectors from one resolution element to the next were uncorrelated. In other words, no use is made of the spatial information contained in the scene. This is a useful but suboptimal approach, since in a practical situation strong correlations are certain to exist. "Sample classification" is a name used to refer to those classification schemes in which points a reclassified in sets (samples) rather than individually. It is assumed that all the points in a set belong to the same class. …