Technical reports, manuscripts and photographs document the early history of the University of Utah Computer Science Department.
TO
Filters: Collection: "ir_computersa"
| Title | Description | Subject | Date | ||
|---|---|---|---|---|---|
| 26 |
 |
A Parametric Model for Human Faces | This report presents a computer model for the representation of human faces. This three-dimensional, parametric model produces shaded facial images. The face, constructed of polygonal surfaces, is manipulated through the use of parameters which control interpolation, translation, rotation and scalin... | 1974-12 | |
| 27 |
 |
A Subdivision Algorithm for Computer Display of Curved Surfaces | This report presents a method for producing computer shaded pictures of curved surfaces. Three-dimensional curved patches are used, as contrasted with conventional methods using polygons. The method subdivides a patch into successively smaller subpatches until a subpatch is as small as a raster- ele... | 1974-12 | |
| 28 |
 |
Object models for computer aided design | Abstract: The goal of this research has been to develop an underlying modeling system to support applications in computer modeling system to support applications in computer aided design and scientific modeling. Particular emphasis has been given to two key issues: 1. data base support; 2. graphic ... | scientific modeling; computer models; data base support; graphic interaction; graphic support system | 1976-03 |
| 29 |
 |
Image Recognition Using Generalized Correlation | This paper investigates the use of generalized cross-correlation in pattern matching when the objects may be of one or two dimensions. Generalized correlation can be used to determine the amount of dilatation and rotation between a given template and an object, in addition to determining the relativ... | 1977-08 | |
| 30 |
 |
Computer display of curved surfaces | Abstract: This thesis attacks the problem of generating computer synthesized images both more rapidly and more realistically. Increase in speed is achieved by a scan line based algorithm for drawing pictures of parametrically defined curved surfaces. Computation time is reduced by requiring calcula... | computer images; computation time; surfaces | 1978 |
| 31 |
 |
Surface Representation-Symbolic Computation | Recent research in Computer Aided Geometric Design is surveyed in this paper. A DEMONSTRATION of the feasibility and utility of some of the new methods of curve and surface representation for interactive design is given in a movie which will be shown during the presentation. (Author) | 1978-04 | |
| 32 |
 |
On the rendering of surfaces | Abstract: Despite the relative sophistication of modern surface design systems, many graphical renderings of surfaces are relatively crude. The paper discusses a variety of possible rendering, including various line drawing methods, realistic and functional shading, and ccombinations of line drawing... | surface design systems; graphical renderings; functional shading; curvature shading | 1979 |
| 33 |
 |
Frame buffer system selection | Abstract: This report summarizes the objectives of the University of Utah's Computer Science Department in its purchase of a frame buffer. The criteria for selection are given, along with a consideration of commercially available systems. | frame buffer; computer memory; raster-scan images; display hardware; University of Utah Computer Science Department | 1979-01 |
| 34 |
 |
Noise Suppression Methods for Robust Speech Processing | Robust speech processing in practical operating environments requires effective environmental and processor noise suppression. This report describes the technical findings and accomplishments to develop real time, compressed speech analysis-synthesis algorithms whose performance is invariant under s... | 1979-04 | |
| 35 |
 |
A Constant Percentage Bandwidth Transform for Acoustic Signal Processing | This paper describes a constant percentage bandwidth transform for acoustic signal processing. Such a transform is shown to emulate behavior found in the human auditory system. A synthesis transformation is developed which, when cascaded with the absence of spectral modification. The effects of spec... | 1980-01 | |
| 36 |
 |
Reconstruction of three-dimensional surfaces from two-dimensional projections | Abstract: This thesis describes a method for determining the three-dimensional shape of an object from a set of photographs of the objects. For a non-glossy surface, the image brightness is, in theory, a function only of the normal to the surface and of the incident light direction. A reflectivity l... | three-dimensional images; image brightness; reflectivity law | 1981-06 |
| 37 |
 |
Design goals of an editor for storage logic arrays | Abstract: Integrated circuits of increased density require both better fabrication technology and tools for managing the design complexity. Before stepping firmly into the era of Very Large Scale Integration (VLSI), powerful abstractions of integrated circuit design and associated software tools mu... | storage logic arrays; Integrated circuit design | 1981-06 |
| 38 |
 |
Implementation of a network database using a function graph language | Abstract: Most of the work on databases to date has involved approaches that deviate considerably from a purely mathematical (functional) viewpoint. The research reported in this thesis deals with an implementation of a network database using FGL to achieve this functionality. The amount of database... | network database | 1981-06 |
| 39 |
 |
Beta-spline: a local representation based on shape parameters and fundamental geometric measures | Abstract: A mathematical technique for curve and surface representation has been developed which reflects an underlying geometric, as opposed to algebraic nature. Elementary differential geometry concepts are reviewed and the unit tangent and curvature vectors are used as fundamental geometric meas... | beta-spline; geometric curves; geometric surfaces; shape parameters | 1981-12 |
| 40 |
 |
ASSASSIN: an assembly, specification and analysis system for speed-independent control-unit design in integrated circuits using path-programmable logic (PPL) | Abstract: Numerous efforts have been made to automatically implement the control-units and datapaths of synchronous systems in integrated circuits. Speed-independent systems have not yet been extensively explored in the context of the integrated circuit. Presented in this thesis is a software system... | path-programmable logic; integrated circuits; Portable standard LISP; VLSI design | 1982-06 |
| 41 |
 |
A general model for the user interface of screen editors | Text editing programs are becoming larger in size and more important in modern operating systems. We present a model for the user interface portions of editors. The model provides a consistent and easy-to-implement environment in which many powerful and useful features can be incorporated. This mode... | text editing; text editing program; screen editor; computers | 1983-03 |
| 42 |
 |
A graphical workstation and programming environment for data-driven computation | This dissertation reports on the development of a prototype programming environment for a graphical programming language to support data-driven style of computation. Emphasis is on the need for tools to assist in the development of nontrivial graphical programs. | graphical programming language; data-driven style; computation; computers | 1983-03 |
| 43 |
 |
Interactive Spline Modelling | This contract has initiated explorations into the advantages of interactive environments for developing computer based spline representations and the types of moderately complex objects for which it might be suitable. Additionally mathematical tools for surface fitting and modification in an interac... | 1983-04-27 | |
| 44 |
 |
Applicative updating and provisional computation in functional programming | Large scale computing systems often consist of calculations which are repeated for many sets of input data. If the variance between the data sets is small, there may be portions of the computation which are not affected by the changes in the input values. The effort required for such systems can be ... | recomputation; efficient recomputation; function graphs; computers | 1983-06 |
| 45 |
 |
Asylim: A simulation and placement checking system for path-programmable logic integrated circuits | Presented in this thesis is a simulation/design checking system for PPL circuits. This system directly addresses the problems associated with the other simulators listed above. The circuit model employed by the system makes use of six logic values and a close correspondence between the PPL and simul... | PPL circuits; PPL; computers; NMOS circuits; CMOS circuits; ASYLIM; simulation checking system; design checking system | 1983-06 |
| 46 |
 |
A framework for multi-sensor integration and data acquisition | This thesis investigates and implements a framework for multi-sensor integration and data acquisition operating in the context of a robot workstation equipped with both contact and noncontact sensors. An appropriate low-level representation of raw data supplied by various sensors is developed. We pr... | computers; Spatial proximity graph; 3-D data; object recognition | 1983-08 |
| 47 |
 |
GCS: A graphical front end to ASSASSIN | This thesis reports on the development and implementation of a graphical front end to ASSASSIN. This menu-driven system runs in a PSL environment, on the Apollo Domain System. | ASSASSIN; menu-driven systems; PSL environment; apollo domain system; computers | 1983-08 |
| 48 |
 |
Constraint driven synthesis of hardware design | Design synthesis (or Synthetic Design) is an attractive alternative to manual design, due to the obvious benefits of decreased development time and correctness by construction. Unfortunately, the price for this automation has frequently been inefficient designs and a narrow range of application. The... | design synthesis; constraint driven synthesis; constraints; computers | 1983-08 |
| 49 |
 |
FEL + set abstraction = database query language | The methodology of embedding set abstraction into FEL is described. Set abstraction is a powerful notation which can be used directly for higher level database query language. | set abstraction; FEL | 1983-09 |
| 50 |
 |
Data structures and system support for a graphical programming language editing and program development environment | This thesis presents an editing tool for use in the development of data-driven style programs. These programs are based on a hierarchical graphical syntax rather than the conventional textual syntax. The editor provides the programmer with all the necessary operations for traversing and manipulating... | editing tool; computers; data-driven style programs | 1983-12 |