Now showing items 226-245 of 1217

    • D-SCRIPT: A Computational Theory of Descriptions 

      Moore, Robert C. (1973-02-01)
      This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are ...
    • Data and Model-Driven Selection Using Color Regions 

      Syeda-Mahmood, Tanveer Fathima (1992-02-01)
      A key problem in model-based object recognition is selection, namely, the problem of determining which regions in the image are likely to come from a single object. In this paper we present an approach that extracts ...
    • Data and Model-Driven Selection Using Parallel-Line Groups 

      Tanveer, S.; Mahmood, F. (1993-05-01)
      A key problem in model-based object recognition is selection, namely, the problem of isolating regions in an image that are likely to come from a single object. This isolation can be either based solely on image data ...
    • Data Representations in PDP-10 MACLISP 

      Steele, Guy Lewis, Jr. (1977-09-01)
      The internal representations of the various MacLISP data types are presented and discussed. Certain implementation tradeoffs are considered. The ultimate decisions on these tradeoffs are discussed in the light of ...
    • DDT Reference Manual 

      Osman, Eric (1971-09-01)
      This memo describes the version of DDT used as the command level of the A.I. Laboratory Time Sharing System (ITS). Besides the usual program control, examination, and modification features, this DDT provides many ...
    • Debunking the 'Expensive Procedure Call' Myth, or, Procedure Call Implementations Considered Harmful, or, Lambda: The Ultimate GOTO 

      Steele, Guy Lewis, Jr. (1977-10-01)
      Folklore states that GOTO statements are 'cheap', while procedure calls are 'expensive'. This myth is largely a result of poorly designed language implementations. The historical growth of this myth is considered. Both ...
    • Decomposition of a Visual Scene into Bodies 

      Guzman, Adolfo (1967-09-01)
      This memorandum describes a program which finds bodies in a scene, presumably formed by 3-dimensional objects, with some of them perhaps not completely visible.
    • Decomposition of a Visual Scene into Three-Dimensional Bodies 

      Guzman, Adolfo (1969-01-01)
      The program described here takes as its input a collection of lines, vertices and surfaces describing a scene, and analyzes the scene into a composition of three-dimensional objects. The program does not need to know the ...
    • Defining Natural Language Grammars in GPSG 

      Ristad, Eric Sven (1986-04-01)
      This paper is a formal analysis of whether generalized phrase structure grammar's (GPSG) weak context-free generative power will allow it to achieve three of its central goals: (1) to characterize all and only the ...
    • Delegation, Arbitration and High-Level Service Discovery as Key Elements of a Software Infrastructure for Pervasive Computing 

      Gajos, Krzysztof; Shrobe, Howard (2003-06-01)
      The dream of pervasive computing is slowly becoming a reality. A number of projects around the world are constantly contributing ideas and solutions that are bound to change the way we interact with our environments and ...
    • The Delta Tree: An Object-Centered Approach to Image-Based Rendering 

      Dally, William J.; McMillan, Leonard; Bishop, Gary; Fuchs, Henry (1997-05-02)
      This paper introduces the delta tree, a data structure that represents an object using a set of reference images. It also describes an algorithm for generating arbitrary re-projections of an object by traversing its ...
    • Demystifying Quantum Mechanics: A Simple Universe with Quantum Uncertainty 

      Drescher, Gary L. (1988-12-01)
      An artificial universe is defined that has entirely deterministic laws with exclusively local interactions, and that exhibits the fundamental quantum uncertainty phenomenon: superposed states mutually interfere, but ...
    • Dense Depth Maps from Epipolar Images 

      Mellor, J.P.; Teller, Seth; Lozano-Perez, Tomas (1996-11-01)
      Recovering three-dimensional information from two-dimensional images is the fundamental goal of stereo techniques. The problem of recovering depth (three-dimensional information) from a set of images is essentially the ...
    • Density Reconstruction Using Arbitrary Ray Sampling Schemes 

      Horn, Berthold K.P. (1977-09-01)
      Methods for calculating the distribution of absorption densities in a cross section through an object from density integrals along rays in the plane of the cross section are well known, but are restricted to particular ...
    • DERIVATOR I: A Program for Visual Inspection of Solutions to First-Order Non-Linear Differential Equations 

      Minsky, Marvin (1963-12-01)
      Derivator is a PDP-1 program for examining the solutions to differential equations by inspection of a visual display of trajectories. Because fixed-point arithmetic is used (in order to maintain visual display speeds), ...
    • Describing Surfaces 

      Brady, Michael; Ponce, Jean; Yuille, Alan; Asada, Haruo (1985-01-01)
      This paper continues our work on visual representation s of three-dimensional surfaces [Brady and Yuille 1984b]. The theoretical component of our work is a study of classes of surface curves as a source of constraint ...
    • Description and Control of Manipulation by Computer-Controlled Arm 

      Gresser, Jean-Yves (1968-09-01)
      The immediate purpose of the research on Intelligent Automata is to have an autonomous machine able to understand uncomplicated commands and to manipulate simple objects without human intervention. This thesis is concerned ...
    • The Description of Large Systems 

      Pitman, Kent (1984-09-01)
      In this paper we discuss the problems associated with the description and manipulation of large systems when their sources are not maintained as single fields. We show why and how tools that address these issues, such ...
    • A Description of the CNTOUR Program 

      Krakauer, Lawrence J. (1966-11-01)
      The CNTOUR program plots an intensity relief map of an image which is read from the vidisector camera (TV-B). It may be used as a general purpose aiming, monitoring and focusing program, especially for high-contrast images, ...
    • Descriptive Simulation: Combining Symbolic and Numerical Methods in the Analysis of Chemical Reaction Mechanisms 

      Eisenberg, Michael (1989-09-01)
      The Kineticist's Workbench is a computer program currently under development whose purpose is to help chemists understand, analyze, and simplify complex chemical reaction mechanisms. This paper discusses one module ...