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Now showing items 11-20 of 54
Determining Shape and Reflectance Using Multiple Images
(1978-08-01)
Distributions of surface orientation and reflectance factor on the surface of an object can be determined from scene radiances observed by a fixed sensor under varying lighting conditions. Such techniques have potential ...
Constraints
(1978-11-01)
We present an interactive system organized around networks of constraints rather than the programs which manipulate them. We describe a language of hierarchical constraint networks. We describe one method of deriving ...
Information Prosthetics for the Handicapped
(1978-09-01)
In this proposal we describe a technological step towards the realization of INFORMATION PROSTHETICS. Our primary focus is on using rather than making the technology. Specifically, our goal is to transpose for the use ...
Bandpass Channels, Zero-Crossings, and Early Visual Information Processing
(1978-09-01)
A recent advance by B.F. Logan in the theory of one octave bandpass signals may throw new light on spatial-frequency-tuned channels in early visual information processing.
Reflectance Map Techniques for Analyzing Surface Defects in Metal Castings
(1978-06-01)
This report explores the relation between image intensity and object shape. It is shown that image intensity is related to surface orientation and that a variation in image intensity is related to surface curvature. ...
Director Guide
(1978-06-01)
Director is a programming language designed for dynamic graphics, artificial intelligence, and naﶥ users. It is based upon the actor or object oriented approach to programming and resembles Act 1 and SmallTalk. ...
Non-Monotonic Logic I
(1978-08-01)
"Non-monotonic" logical systems are logics in which the introduction of new axioms can invalidate old theorems. Such logics are very important in modeling the beliefs of active processes which, acting in the presence ...
Dynamic Graphics Using Quasi Parallelism
(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 ...
Understanding Understanding Mathematics
(1978-08-01)
In this paper we look at some of the ingredients and processes involved in the understanding of mathematics. We analyze elements of mathematical knowledge, organize them in a coherent way and take note of certain ...
A Progress Report on the Discourse and Reference Components of PAL
(1978-04-01)
This paper reports on research being conducted on a computer assistant, called PAL. PAL is being designed to arrange various kinds of events with concern for the who, what, when, where and why of that event. The goal ...