Computer Science Archive
 
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TitleDescriptionSubjectDate
101 A Constant Percentage Bandwidth Transform for Acoustic Signal ProcessingThis 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
102 A Parametric Model for Human FacesThis 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
103 Digital Image Deblurring by Nonlinear Homomorphic FilteringThis report is concerned with the digital estimation of the frequency response of a two-dimensional linear system through which images have been passed and blurred. Almost no a priori knowledge concerning the system is required, and only one blurred image is necessary for a successful estimation. Fo...1974-08
104 The use of inverse rendering in lighting designThis dissertation presents an inverse rendering approach for designing the illumination in an environment using optimization techniques applied to a radiosity based image synthesis system.image synthesis system; radiosity; inverse rendering; designing illumination; computers; radioptimization1995-06
105 Real-time measurement of multiple three-dimensional positionsAbstract: This paper describes a priori digital speech analysis. This method takes advantage of the quasi-periodic nature of voice speech sounds to reduce the amount of computation needed to obtain the analysis parameters. The vocal tract is modeled as an all-pole digital filter (predictive coding)...light-emitting diodes; photomultiplier1973-06
106 Efficient evaluation of normal order through strictness informationNormal order functional languages (NOFLs) offer conceptual simplicity, expressive power and attractiveness for parallel execution. In NOFLs expressions are represented in a graphical form and transformed to the final answer using graph transformation rules. Until the G-machine project in Sweden, imp...NOFL; strictness analysis; computers1987-03
107 An automated wire routing kernelThe kernel described here is based on using pattern matching techniques for describing algorithms. The use of patterns permits different physical constraints and properties to be considered. In addition, the abstraction provided by patterns allows the ability to transform oddly shaped routing areas ...computers; kernel functions1991-07
108 Interaction with constraints in three-dimensional modelingThe purpose of this thesis is to simplify and improve the efficiency of the interactive definition of geometric objects in computer aided geometric modeling. To achieve this goal two ways of defining geometric objects are combined and interfaced: 1) the definition of objects by interactive construct...three-dimensional modeling; computers1991-05
109 Numerical weather prediction model for distributing computing systemsThe objectives of this research are twofold: One is to develop and implement a spectral numerical weather prediction model using parallel algorithms. The other objective is to examine a parallel paradigm that allows users to write parallel scientific algorithms easily and efficiently.weather predictions; spectral numerical weather predictions; weather prediction model; parallel algorithms; computers1991-08
110 The persistent object system MetaStore : persistence via metaprogrammingObject intensive applications require persistence of complex objects. Many of these applications also use vast amounts of data, often exceeding a machine's virtual memory, MetaStore is a portable, persistent object system designed to solve these problems.; MetaStore uses the metaprogramming faciliti...1992-06
111 Design and implementation of a portable shared memory serverProcesses communicate between one another using mechanisms like message passing, files, shared memory, etc. In current systems, shared memory is not commonly used even though it has many advantages over message passing and file sharing such as simplicity, efficiency, and lower space overhead. This t...memory management; portable shared memory server1994-12
112 The Many Faces of IntrospectionIn psychology, introspection is a common term meaning an examination of one's own thought process and sensory experience. Similarly, introspection in computer systems enables a computer to examine its own computational behavior. A computer that ""understands"" its own behavior, an introspective comp...1992-04
113 UNIDEC AssemblerThe report discusses the UNIDEC assembler which runs on the UNIVAC 1108 and passes assembled PDP-8 code over the electronic link between the two machines.1968-06-06
114 Real-time measurement of multiple three-dimensional positionsAbstract: This paper describes a priori digital speech analysis. This method takes advantage of the quasi-periodic nature of voice speech sounds to reduce the amount of computation needed to obtain the analysis parameters. The vocal tract is modeled as an all-pole digital filter (predictive coding)...light-emitting diodes; photomultiplier1973-06
115 TICL : a Type Inference System for Common LispMost current Common Lisp compilers generate more efficient code when supplied with data type information. However, in keeping with standard Lisp programming style, most programmers are reluctant to provide type information; they simply allow the run-time type system to manage the data types accordin...compilers; LISP; type interface; TICL1989-03
116 Computer Illustration of Three Dimensional Sculptured SurfacesThe information content in computer generated images is often overwhelming to visually interpret. To better communicate the overall shape information of a given model, current techniques for creation of wireframes, shaded renderings. and painted images need to be augmented and used cooperatively. A ...computer graphics; computer generated image1990-08
117 A graphical workstation and programming environment for data-driven computationThis 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; computers1983-03
118 Constraint driven synthesis of hardware designDesign 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; computers1983-08
119 Fixed Point Computation and Parallel Algorithms for Solving Wave EquationsThis dissertation is concerned with two problems: fixed-point computation and parallel algorithms for solving wave equations. Many problems can be formulated as fixed-point problems, which is to solve the equations of the form f(x) - x = 0. We develop efficient algorithms and establish complexity re...fixed point computation; parallel algorithm; fixed point envelope; fixed point ellipsoid; wave equation; processor array; transputer; linear array1994
120 Data structures and system support for a graphical programming language editing and program development environmentThis 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 programs1983-12
121 Moped (a portable debugger)Moped is a portable debugger that uses enhanced tracing facilities and backtracing to discover unusual or undesirable program behaviors. It is based upon two modules - Program Probes and Program. History, each providing different abilities. Program Probes is a forward tracing utility which allows Mo...debugging in computer science; computer science1988-06
122 Subdivision algorithm for computer display of curved surfacesAbstract: 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 ...Curved surfaces; Computer shaded pictures; Curved patches1974
123 A shading method for computer generated imagesA shading method for computer generated images is developed that provides benefits of both ray tracing and radiosity methods. Diffuse reflection behavior is taken from the radiosity approach, while specular reflection and transparency are based on ray tracing methods. Distributions of sample rays ar...computer graphics; shading method; computer generated images; ray tracing; radiosity1988-06
124 Consistent Geometric Modeling ApproachesBoolean set operations are important in solid modeling; however making them robust is problematic. This thesis summarizes the problems with robustness of geometric algorithms caused by approximated data and numerical computation and provides two different approaches to build a robust geometric model...geometric model; boolean set; adaptive single tolerance1993
125 A multistrategy machine learning approach to object recognitionThis work describes an innovative approach that combines machine learning and vision into an integrated system. The system is called ORACLE: Object Recognition Accomplished through Consolidation Learning Expertise. It uses two machine learning techniques known as explanation-based learning and conce...ORACLE; ORACLE system; computers1991-03
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