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The Implicit Constraints of the Primal Sketch
(1981-10-01)
Computational theories of structure-from-motion and stereo vision only specify the computation of three-dimensional surface information at points in the image at which the irradiance changes. Yet, the visual perception ...
How to Play Twenty Questions with Nature and Win
(1982-12-01)
The 20 Questions Game played by children has an impressive record of rapidly guessing an arbitrarily selected object with rather few, well-chosen questions. This same strategy can be used to drive the perceptual process, ...
The Scientific Community Metaphor
(1981-01-01)
Scientific communnities have proven to be extremely successful at solving problems. They are inherently parallel systems and their macroscopic nature makes them amenable to careful study. In this paper the character of ...
Marr's Approach to Vision
(1981-08-01)
In the last seven years a new computational approach has led to promising advances in the understanding of biological visual perception. The foundations of the approach are largely due to the work of a single man, ...
Passive Navigation
(1981-11-01)
A method is proposed for determining the motion of a body relative to a fixed environment using the changing image seen by a camera attached to the body. The optical flow in the image plane is the input, while the ...
Workshop on the Design and Control of Dextrous Hands
(1982-04-01)
The Workshop for the Design and Control of Dexterous Hands was held at the MIT Artificial Intelligence Laboratory on November 5-6, 1981. Outside experts were brought together to discuss four topics: kinematics of hands, ...
Natural Learning
(1981-10-01)
This memo reports the results of a case study into how children learn in the absence of explicit teaching. The three subjects, an eight year old, a ten year old and a thirteen year old were observed in both of two ...
The SUPDUP Protocol
(1983-07-01)
The SUPDUP protocol provides for login to a remote system over a network with terminal-independent output, so that only the local system need know how to handle the user's terminal. It offers facilities for graphics and ...
A Lightness Scale from Image Intensity Distributions
(1981-08-01)
A lightness scale is derived from a theoretical estimate of the probability distribution of image intensities for natural scenes. The derived image intensity distribution considers three factors: reflectance, surface ...
A Selected Descriptor-Indexed Bibliography to the Literature on Belief Revision
(1980-02-01)
This article presents an overview of research in an area loosely called belief revision. Belief revision concentrates on the issue of revising systems of beliefs to reflect perceived changes in the environment or ...