The problem of character recognition is used as a vehicle for an investigation of the properties of a particular descriptor of planar patterns. The descriptor arises in the work of Connor [4] on the activity of photosensitive receptors connected in a lateral inhibitory network.
It results from a mapping of the planar pattern into a periodic function of one variable. The function is found to be a general descriptor of pattern contour which denotes extrema in contour curvature and is independent of pattern orientation.
Based on conjectures regarding human perception of the elements of a pattern set representing alphabetic characters, a recognition machine based on a sequential decision strategy is developed and implemented. Results of the application of the strategy to a mixed-font environment show the pattern descriptor to be capable of high recognition rates. However, these anticipated results may be obtained only through the modification of the current operating system. A number of such changes are proposed and their probable effects discussed. / Science, Faculty of / Computer Science, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/35174 |
| Date | January 1969 |
| Creators | Brown, Lachlan Hugh Thomas |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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