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Browsing AI Memos (1959 - 2004) by Title

Research and Teaching Output of the MIT Community

Browsing AI Memos (1959 - 2004) by Title

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  • Negahdaripour, Shahriar (1985-08-01)
    In this paper, we derive a closed form solution for recovering the motion of an observer relative to a planar surface directly from image brightness derivatives. We do not compute the optical flow as an intermediate ...
  • Negahdaripour, Shahriar; Yuille, Alan (1986-03-01)
    In this paper, we solve the problem of recovering the motion of an observer relative to a surface which can be locally approximated by a quadratic patch directly from image brightness values. We do not compute the ...
  • Taalebinezhaad, M. Ali (1990-03-01)
    This work introduces a direct method called FIXATION for solving the general motion vision problem. This Fixation method results in a constraint equation between translational and rotational velocities that in combination ...
  • Winston, Patrick (1969-05-01)
    Warren Teitelman presented a novel scheme for real time character recognition in his master's thesis submitted in June of 1963. A rectangle, in which a character is to be drawn, is divided into two parts, one shaded ...
  • Haase, Kenneth W., Jr. (1986-04-01)
    Cyrano is a thoughtful reimplementation of Lenat's controversial Eurisko program, designed to perform automated discovery and concept formation in a variety of technical fields. The 'thought' in the reimplementation ...
  • Bulthoff, Henrich; Fahle, Manfred (1989-09-01)
    The binocular perception of shape and depth relations between objects can change considerably if the viewing direction is changed only by a small angle. We explored this effect psychophysically and found a strong depth ...
  • Binford, Thomas O. (1970-03-01)
    This note describes a system which compiles various forms of LISP lists and arrays into display commands for the DEC 340 display, and provides supporting functions for scaling, for moving elements in a display, for pot ...
  • Balas, Benjamin J.; Sinha, Pawan (2003-08-13)
    A fundamental question in visual neuroscience is how to represent image structure. The most common representational schemes rely on differential operators that compare adjacent image regions. While well-suited to encoding ...
  • Basri, Ronen; Weinshall, Daphna (1992-07-01)
    Similarity measurements between 3D objects and 2D images are useful for the tasks of object recognition and classification. We distinguish between two types of similarity metrics: metrics computed in image-space (image ...
  • Steele, Guy Lewis, Jr.; Sussman, Gerald Jay (1979-11-01)
    We define a "rack", a data abstraction hybrid of a register and a stack. It is used for encapsulating the behavior of the kind of register whose contents may have an extent which requires that it be saved during the ...
  • 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 ...
  • Rosenberg, Steven T. (1977-07-01)
    Sub-strings derived from four-letter strings (e.g. ABCD) were presented to subjects using a variation on Bransford and Franks' (1971) paradigm. Each strins was in either upper or lower case. Subjects were then tested ...
  • Heel, Joachim (1988-04-01)
    In this paper we show how the theory of dynamical systems can be employed to solve problems in motion vision. In particular we develop algorithms for the recovery of dense depth maps and motion parameters using state ...
  • Niyogi, Partha; Berwick, Robert (1995-12-01)
    Formalizing linguists' intuitions of language change as a dynamical system, we quantify the time course of language change including sudden vs. gradual changes in languages. We apply the computer model to the historical ...
  • Kahn, Kenneth M.; Hewitt, Carl (1978-06-01)
    Dynamic computer graphics is best represented as several processes operating in parallel. Full parallel processing, however, entails much complex mechanism making it difficult to write simple, intuitive programs for ...
  • Hollerbach, John M.; Flash, Tamar (1981-11-01)
    Movement of multiple segment limbs requires generation of appropriate joint torques which include terms arising from dynamic interactions among the moving segments as well as from such external forces as gravity. The ...
  • Abelson, Harold; Sussman, Gerald Jay (1987-05-01)
    The dynamicist's workbench is a system for automating some of the work of experimental dynamics. We describe a portion of our system that deals with the setting up and execution of numerical simulations. This part of ...
  • Brock, David L. (1991-11-01)
    A dynamic model and control system of an artificial muscle is presented. The artificial muscle is based on a contractile polymer gel which undergoes abrupt volume changes in response to variations in external conditions. ...
  • Hollerbach, John M. (1983-01-01)
    A fundamental time-scaling property of manipulator dynamics has been identified that allows modification of movement speed without complete dynamics recalculation. By exploiting this property, it can be determined ...
  • Horn, Berthold K.P.; Hirokawa, Ken-Ichi; Vazirani, Vijay (1977-10-01)
    In order to be able to design a control system for high-speed control of mechanical manipulators, it is necessary to understand properly their dynamics. Here we present an analysis of a detailed model of a three-link ...
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