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Vertical Image Registration in Stereopsis
(1983-10-01)
Most computational theories of stereopsis require a registration stage prior to stereo matching to reduce the matching to a one-dimensional search. Even after registration, it is critical that the stereo matching process ...
Scaling Theorems for Zero-Crossings
(1983-06-01)
We characterize some properties of the zero-crossings of the laplacian of signals - in particular images - filtered with linear filters, as a function of the scale of the filter (following recent work by A. Witkin, 1983). ...
Symbolic Error Analysis and Robot Planning
(1982-09-01)
A program to control a robot manipulator for industrial assembly operations must take into account possible errors in parts placement and tolerances of the parts themselves. Previous approaches to this problem have been ...
Parsing and Generating English Using Commutative Transformations
(1982-05-01)
This paper is about an implemented natural language interface that translates from English into semantic net relations and from semantic net relations back into English. The parser and companion generator were implemented ...
A Subdivision Algorithm in Configuration Space for Findpath with Rotation
(1982-12-01)
A hierarchical representation for configuration space is presented, along with an algorithm for searching that space for collision-free paths. The detail of the algorithm are presented for polygonal obstacles and a ...
Supporting Organizational Problem Solving with a Workstation
(1982-07-01)
This paper describes an approach to supporting work in the office. Using and extending ideas from the field of Artificial Intelligence (AI) we describe office work as a problem solving activity. A knowledge embedding ...
Visual Algorithms
(1982-05-01)
Nonlinear, local and highly parallel algorithms can perform several simple but important visual computations. Specific classes of algorithms can be considered in an abstract way. I study here the class of polynomial ...
Learning Physical Descriptions from Functional Definitions, Examples, and Precedents
(1982-11-01)
It is too hard to tell vision systems what things look like. It is easier to talk about purpose and what things are for. Consequently, we want vision systems to use functional descriptions to identify things when ...
The Relation Between Proximity and Brightness Similarity in Dot Patterns
(1982-05-01)
The Gestalt studies demonstrated the tendency to visually organize dots on the basis of similarity, proximity, and global properties such as closure, good continuation, and symmetry. The particular organization imposed ...
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 ...