Search
Now showing items 251-260 of 388
Green Theorems and Qualitative Properties of the Optical Flow
(1991-04-01)
How can one compute qualitative properties of the optical flow, such as expansion or rotation, in a way which is robust and invariant to the position of the focus of expansion or the center of rotation? We suggest a ...
Line Kinematics for Whole-Arm Manipulation
(1991-01-01)
A Whole-Arm Manipulator uses every surface to both sense and interact with the environment. To facilitate the analysis and control of a Whole-Arm Manipulator, line geometry is used to describe the location and trajectory ...
Principles, Opportunism and Seeing in Design: A Computational Approach
(1991-06-01)
This thesis introduces elements of a theory of design activity and a computational framework for developing design systems. The theory stresses the opportunistic nature of designing and the complementary roles of focus ...
Sequence-Seeking and Counter Streams: A Model for Information Processing in the Cortex
(1991-12-01)
This paper presents a model for the general flow in the neocortex. The basic process, called "sequence-seeking," is a search for a sequence of mappings or transformations, linking source and target representations. The ...
Recovering Heading for Visually-Guided Navigation
(1991-06-01)
We present a model for recovering the direction of heading of an observer who is moving relative to a scene that may contain self-moving objects. The model builds upon an algorithm proposed by Rieger and Lawton (1985), ...
Resolving Ambiguity in Nonmonotonic Inheritance Hierarchies
(1991-08-01)
This paper describes a theory of inheritance theories. We present an original theory of inheritance in nonmonotonic hierarchies. The structures on which this theory is based delineate a framework that subsumes most ...
Recovering Three-Dimensional Structure from Motion with Surface Reconstruction
(1991-12-01)
We address the computational role that the construction of a complete surface representation may play in the recovery of 3--D structure from motion. We present a model that combines a feature--based structure--from- ...
Automatic Design of a Maglev Controller in State Space
(1991-12-01)
We describe the automatic synthesis of a global nonlinear controller for stabilizing a magnetic levitation system. The synthesized control system can stabilize the maglev vehicle with large initial displacements from ...
The Matching of Doubly Ambiguous Stereograms
(1991-07-01)
I have previously described psychophysical experiments that involved the perception of many transparent layers, corresponding to multiple matching, in doubly ambiguous random dot stereograms. Additional experiments ...
Intelligence Without Reason
(1991-04-01)
Computers and Thought are the two categories that together define Artificial Intelligence as a discipline. It is generally accepted that work in Artificial Intelligence over the last thirty years has had a strong influence ...