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Now showing items 51-58 of 58
Using Enhanced Spherical Images for Object Representation
(1979-05-01)
The processes involved in vision, manipulation, and spatial reasoning depend greatly on the particular representation of three-dimensional objects used. A novel representation, based on concepts of differential geometry, ...
SEQUINS and QUILLS: Representations for Surface Topography
(1979-05-01)
The shape of a continuous surface can be represented by a collection of surface normals. These normals are like a porcupine's quills. Equivalently, one can use the surface patches on which these normals rest. These ...
Creation of Computer Animation from Story Descriptions
(1979-08-01)
This report describes a computer system that creates simple computer animation in response to high-level, vague, and incomplete descriptions of films. It makes its films by collecting and evaluating suggestions from ...
Compliance and Force Control for Computer Controlled Manipulators
(1979-04-01)
Compliant motion occurs when the manipulator position is constrained by the task geometry. Compliant motion may be produced either by a passive mechanical compliance built in to the manipulator, or by an active ...
Specifying and Proving Properties of Guardians for Distributed Systems
(MIT Artificial Intelligence Laboratory, 1979-05)
In a distributed system where many processors are connected by a network and communicate using message passing, many users can be allowed to access the same facilities. A public utility is usually an expensive or limited ...
Stepping Motor Control System
(MIT Artificial Intelligence Laboratory, 1979-02)
This paper describes a hardware system designed to facilitate position and velocity control of a group of eight stepping motors using a PDP-11. The system includes motor driver cards and other interface cards in addition ...
Evolving Parallel Programs
(MIT Artificial Intelligence Laboratory, 1979-05)
Message passing is directed toward the production of programs that are intended to execute efficiently in a computing environment with a large number of processors. The paradigm attempts to address the computational issues ...
Numerical Shape from Shading and Occluding Contours in a Single View
(MIT Artificial Intelligence Laboratory, 1979-11)
An iterative method of using occluding boundary information is proposed to compute surface slope from shading.
We use a stereographic space rather than the more commonly used gradient space in order to express occluding ...