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On Edge Detection
(1984-08-01)
Edge detection is the process that attempts to characterize the intensity changes in the image in terms of the physical processes that have originated them. A critical, intermediate goal of edge detection is the detection ...
The Find-Path Problem in the Plane
(1984-02-01)
This paper presents a fast heuristic algorithm for planning collision-free paths of a moving robot in a cluttered planar workspace. The algorithm is based on describing the free space between the obstacles as a network ...
Multi-Level Reconstruction of Visual Surfaces: Variational Principles and Finite Element Representations
(1982-04-01)
Computational modules early in the human vision system typically generate sparse information about the shapes of visible surfaces in the scene. Moreover, visual processes such as stereopsis can provide such information at ...
Nature Abhors an Empty Vacuum
(1981-08-01)
Imagine a crystalline world of tiny, discrete "cells", each knowing only what its nearest neighbors do. Each volume of space contains only a finite amount of information, because space and time come in discrete units. ...
Reasoning Utility Package User's Manual, Version One
(1982-04-01)
RUP (Reasoning Utility Package) is a collection of procedures for performing various computations relevant to automated reasoning. RUP contains a truth maintenance system (TMS) which can be used to perform simple ...
Semantics of Inheritance and Attributions in the Description System Omega
(1981-08-01)
Omega is a description system for knowledge embedding which incorporates some of the attractive modes of expression in common sense reasoning such as descriptions, inheritance, quantification, negation, attributions ...
Expert Systems: Where Are We? And Where Do We Go from Here?
(1982-06-01)
Work on Expert Systems has received extensive attention recently, prompting growing interest in a range of environments. Much has been made of the basic concept and the rule-based system approach typically used to ...
Spatial Planning: A Configuration Space Approach
(1980-12-01)
This paper presents algorithms for computing constraints on the position of an object due to the presence of obstacles. This problem arises in applications which require choosing how to arrange or move objects among ...
A Local Front End for Remote Editing
(1982-02-01)
The Local Editing Protocol allows a local programmable terminal to execute the most common editing commands on behalf of an extensible text editor on a remote system, thus greatly improving speed of response without ...
CARTOON: A Biologically Motivated Edge Detection Algorithm
(1982-06-01)
Caricatures demonstrate that only a few significant "edges" need to be captured to convey the meaning of a complex pattern of image intensities. The most important of these "edges" are image intensity changes arising ...