Digital Commons Network^™

3-D Longwave Infrared Synthetic Scene Simulation, Eric H. Shor

Theses

A technique for thermal infrared (8-14 micrometers) synthetic image generation (SIG) was demonstrated that yields improved radiometric accuracy. This process utilizes the LOWTRAN 6 atmospheric propagation model and computer graphics ray-tracing techniques. A scene is created by placing faceted objects into world coordinates with rotation, translation, and scaling parameters. Each facet is assigned a material index and temperature. This index points to angular emissivity data for that material. LOWTRAN 6 can incorporate a sensor response function when calculating data files for the atmospheric transmission, upwelled and downwelled radiances, and temperature-to-radiance conversions. Ray-traced imagery is generated and discussed. The image is …

Optimal Selection Of Textural And Spectral Features For Scene Segmentation, Wendy Rosenblum

Theses

A study is described in which optimal textural and spectral features are selected for scene segmentation. A set of 46 textural features and 3 spectral features were available for image classification. A method was developed which used a thresholded separability measure to select the best features for scene segmentation. The measure was based on the Mahalanobis distance between class means. The optimal feature selection process was applied to a variety of images and classification results using 4 features ranged from 91% to 97% with independent data sets. The use of the thresholded Mahalanobis-like distance for optimal feature selection was compared …

European Immigrant Designers And Their Influence On American Graphic Design: 1920-1950, Jerry W. Counselman

Theses

None provided.

Nagual Interpretations, Bernard C. Meyers

Theses

Not Included

Spirit, Vision, Heart, Deane Colin Fay

Theses

None provided.

Graphic Design Archive Prototype 3.0, David Lamarca

Theses

None provided.

Images In Felt, Lisa Popovics

Theses

This written thesis documents the information used and applied in the process of creating the "Images in Felt" body of work. The document begins with a forward which briefly discusses personal history, and then is followed by the remainder of the paper which is broken up into three seperate parts. The first part is entitled "History of Felt". This section contains relevant historical and present day facts about felt, as well as information on the Bedouin cultures that have used simple textile techniques throughout history. The second part, entitled "Thesis Techniques", describes the various processes used in the making of …

A Comparison Between The Gca/Gatf Off-Press Proof Comparator And The Gatf Standard Offset Color Control Bar For Identifying When A Cromalin Off-Press Proof Is Prepared To Specification For Web Offset Publication, William F. Breakstone

Theses

Off-press proofing is a method of simulating the way a set of separation negatives or positives will look when printed without having to go to the printing press. In 1965, The Graphic Arts Technical Foundation (GATF) developed a proofing control device for production Lithography. The Standard Offset Color Control Bar was also utilized for off-press proofing. In 1983, The Graphic Communications Association, in cooperation with GATF, introduced The Off-Press Proof Comparator. This control device was designed specifically for this technology and intended to be used by both technical and non-technical personnel with equal and successful results. This thesis is concerned …

The Element Of Line In Jewelry Design, Benjamin A. Glover

Theses

None provided.

Light, Transparency And An Appropriate Image In Furniture, John G. Erickson

Theses

None provided.

The Tug Function: A Method Of Context Sensitive Dot Structuring For Digital Halftones, Steven Hoffenberg

Theses

The process of digitizing images to create halftones inherently reduces sharpness through the averaging of grayness values within cell areas. Within the context of a resolution independent page description language, overcoming this reduced sharpness is conventionally addressed by adjusting the grayness values of cells to create larger or smaller halftone dots where edges are present. Such an approach does not take full advantage of the capabilities of the output device. The objective of this project was to design and implement a method of sharpening digital images by altering the shape and position, rather than the size, of halftone dots. Such …

Modeling Variation In The Refractive Index Of Optical Glasses, David Stephenson

Theses

Experimental measurements that describe the dispersive behavior of production samples of optical glasses are fit with models of minimum complexity for the purpose of in terpolation and extrapolation. Software to perform this procedure on a regular basis is presented, and shown to dis tinguish between models of inappropriate complexity. Two degrees of freedom usually provide a statistically optimum fit to the data contrary to the widespread practice of fit ting a general, six term model to such measurements. Using specially developed analysis tools, it is concluded that annealing does not significantly change the partial dispersion of the sample. Partial dispersion …

The Real Estate Appraiser's Courtroom Guide, Jeff Short

Theses

This thesis provides a comprehensive guide for real estate appraisers who serve as expert witnesses in courtroom settings, particularly in cases involving eminent domain, taxation disputes, damages, and property rights. It emphasizes the critical role appraisers play in presenting credible, defensible valuations that withstand legal scrutiny while upholding the integrity of the profession.

The study begins by examining the evolution of the appraisal profession, its struggle for consistent standards, and the increasing importance of regulation and certification. It reviews the limited literature available to appraisers compared to attorneys, highlighting the need for specialized resources tailored to valuation experts in litigation. …

Painting Perceptions, Jacqueline Domin

Theses

The computer is a multidisciplinary tool engaging all the senses. Creating with color, light, and motion is a rich visual experience enhanced by the vibrations of sound. These vibrations, both light and sound, are absorbed by the viewer and influence his experience. This makes the computer a profoundly different medium than the static arts. Artist have powerful tools with which to create experiences - paint perceptions. As a painter, creating rich visual relationships has been a focus for many years. Exploring the computer as an image making tool is different than using it for graphic design. It has taken years …

Automatic Mesh Generation, Ajay Garg

Theses

The objective of this thesis project is a study of Pre-Processors and development of an Automatic Mesh Generator for Finite Element Analysis. The Mesh Generator developed in this thesis project can create triangular finite elements from the geometric database of Macintosh Applications. The user is required to give the density parameter to the program for mesh generation. The research is limited to Mesh Generators of planar surfaces. Delauny Triangulation method maximizes the minimum angles of a triangle. Watson's Delauny Triangulation method can mesh only the 'convex hull' of a set of nodes. This algorithm has been modified to create triangular …

A Graphic Identity Program For Sculpture '91, Alexandra Felice Young

Theses

The Purpose of this thesis was to create a graphic design program for Sculpture '91 . My intent was to research environmental art and design, and participate in the project developement. The graphics developed would then be applied to various promotional pieces.

On Axial Vibration Of A Web-Idle Roller System, Richard Bomba

Theses

A typical continuous web-processing machine consists of hundreds of idle rollers and web spans. A web span is formed by tensioning a thin film (the web) over at least two idle rollers. Machine drive controls, bearing friction, and air impingement on the web surface represent some of the factors that can influence web tension and web speed. A significant effort is devoted to maintaining uniform web tension and web speed in these machines. The uniformity of these parameters is a requirement to consistently manufacture web products within rigorous quality specifications. In support of this effort to control web tension and …

My Student Years, David J. Urgo

Theses

None provided.

Electronic Design And Publishing For Mexican Textile Exhibition, Maria Andrea Robledo Arcos

Theses

This report is written to introduce Graphics Designers and Visual Communicators to the use of the Macintosh computer for design and print production processes. For this computer has changed not only the way traditional design is done, but in addition, has created new styles, new typesetting methods and typographical looks. Above all, it has modified the design and print production processes!

Various Combinations Of Fibers And Anodized Aluminum, In-Won Jung

Theses

None provided.

Fabric And Paper: Expressive Potentials In Fiber, Rebecca Cunningham

Theses

None provided.

Expressing Imaging Algorithms Using A C++ Based Image Algebra Programming Environment, Davender Nath Gupta

Theses

Homogeneous Image Algebra is used as the basis for an image processing environment that uses the image, instead of the pixel, as the fundamental unit being manipulated. The object-oriented language C++ is used to implement the environment. Examples of applications are that include filtering, region growing, skeletonization, Fourier Transforms and Hadamard transforms are presented. This thesis concludes that C++ does have several features which are of great benefit in implementing image processing algorithms.

Color Ink-Jet Printing: Evaluation Of Print Quality On Different Paper Substrates, Srikumaran Asokan

Theses

Ink-jet printing has gained a dominant position among the technology choices for "on demand" generation of color hard copies from the computer. Reduction of ink-related problems, low cost, improved resolution, and less-demanding substrate requirements have become important advantages. This study's primary objective is to evaluate, both subjectively and objectively, the effect of various paper properties on the quality of print obtained from a color ink-jet printer. The initial stage of this investigation involved a subjective evaluation of the different prints by a panel of observers. A dual scaling analysis of the subjective responses indicates that for the paper substrates selected, …

To Determine The Drying Rate And The Rewettability Characteristics Of Water Based Flexographic News Inks, Parthasarathy Varadarajan

Theses

A major problem in the printing of newsprint by flexography with water-based inks is the filling-in of halftones. Drying of the ink and rewettability, the ability of the fresh ink to wet the dried ink, appear to be primary in the understanding of the filling-in problems. Quantification and qualification of critical factors are essential in resolving this problem. In this study black water based flexographic news inks from different manufacturers were compared in terms of their drying and rewettability characteristics. The change in weight with time and contact angle measurements are the response parameters considered. Proper care has been exercised …

Analysis Of Color Variation During Four-Color Offset Lithographic Press Runs By Monitoring Changes In Three-Filter Density Values Of Overprint Tints, Curtis L. Smith

Theses

A densitometric method of monitoring color variation during four-color offset lithographic press runs is proposed. Once an 'OK' press sheet has been approved for the run, a standard color reference is established with which successive sheet pulls can be compared. In order to develop an accurate and repeatable system for monitoring and controlling color variation, densitometric analysis of three color overprinted tints can be utilized. In relation to the OK sheet, changes in the three-filter density readings measured at specific points across successive press sheets, indicate the visual change in color hue and strength that occurs during the press run. …

A Quantitative Analysis Of A Self-Emitting Thermal Ir Scene Simulation System, James S. Warnick

Theses

A quantitative evaluation is performed in which the imaging characteristics of a selfemitting thermal infrared scene simulation system are analyzed. The simulation system is comprised of an energy source (an Argon laser), optics, a spatial light modulator for image generation in the visible wavelength energy, and an transducer for conversion of the visible wavelength energy image to a thermal IR image. After construction of the simulation system, the performance of the simulation system and its components is analyzed by measurement of : (1) the Modulation Transfer Function, (2) the temporal response, (3) the maximum thermal contrast, and (4) the Noise …

An Optimization Model For Selecting The Economical Cutting Parameters In An External Forward Turning Operation, Rose Bothner

Theses

This study develops software that provides optimum lathe cutting conditions for specific materials and parameters. This is accomplished by developing a model, based on empirical and analytical relationships, which estimates the optimum cutting conditions, (i.e. spindle speed, feed rate and depth of cut) for a single pass, external turning operation. These parameters are optimized to yield the minimum production cost, while satisfying constraints imposed by workpiece specifications and equipment limitations. The equipment limitations considered include the available machine power, maximum workholding force of the lathe, range of spindle speeds, feed rates for the lathe and tool, and the range of …

Sirens Of The Shoreline, Eugene Nieminen A.

Theses

None provided.

Study Of Marketing Techniques Involving Color And Texture Associations As Used In Book Publishing, Roxanne Mcclanahan

Theses

Books can send messages to reach the subconscious levels of the reader's mind. These subconscious messages are learned associations from past experiences that use color and texture as means of expression. This perception is not with the eyes, but more with the observer's mind. Therefore, when the book buyer is browsing in a bookstore and the suggestion that one experiences from looking at the book does not match one's subconscious message, the book is quickly put down. The principal object of this study is the effect of color and texture used in cover design of books on the subconscious mind …

Bathrooms Can Be Easier To Use!, Kathryn Kochanowski

Theses

None provided.