Duda, R. O., & Munson, J. H. (1967). Graphical-data-processing research study and experimental investigation. STANFORD RESEARCH INST MENLO PARK CA.
Abstract
The scope of the work under Phase I has been divided into five relatively independent tasks. These are out lined below.
Task A
This task involves the investigation of photographic processing techniques and their electronic equivalent for the simplification of input data. A study has been carried out on the use of unity gamma photographic transparencies for grey scale elimination leading to the suppression of fine detail and the creation of a solid outline around significant features of the landscape. The process may be of practical value for the simplification of aerial photographs before they are fed into a pattern recognition machine.
Task B
A survey will be made of electronic methods of performing pattern recognition. In Sec. III an outline is given of the characteristics of current techniques and the signature ” approach. This will be treated in detail in Report 2.
Task C
A small pattern recognition machine will be constructed capable of modification to various schemes of logic. A compatible set of components based on multi -aperture magnetic cores has been devised , and a general purpose machine is being constructed having an 8 – by- 8 retina 65 multi- level stores , and 5 binary outputs. The mechanical construction work is now 40% complete. Perceptron type logic will be used initially. A paper on the simulation of neural networks with multi-aperture magnetic cores is included.
Task D
Mathematical investigations are being undertaken. These are
divided into Parts (1) and (2), as outlined below.
Part (1 ) –The possible application of certain theorems of integral geometry is being investigated. These provide numerical relations governing such properties of geometrical figures as line length , area , and curvature , which are invariant under rotation and displacement.
Pqrt (2) — An investigation is being made of the logic of practical wiring systems for the improvement of the performance of machines of limited capacity, in specific situations.
Task E
Data storage and retrieval will be studied in relation to the special problems of non-alphanumeric graphical data processing. In Sec. VI , a brief outline is given of the chief areas of interest; a detailed account is deferred until Quarterly Progress Report 2.