| 摘要 |
A character recognition system utilizing an image dissector device to first develop an electronic image of a character and then to scan and to dissect the character into elemental areas. From this scan and dissect operation multiple analog signals are developed which simultaneously correspond to several of the elemental areas. Threshold circuits serve as quantizers and digitize the analog signals into digital signals with discrete levels representing black and white. These digital signals are supplied to logic circuitry which detects geometric features and encodes them as feature vectors. This vector information is stored in a computer memory along with the positional information for locating the vector. The positional information is derived from the scan driving circuitry. Classification and readout is subsequently made. In another embodiment, comparators are used for comparing the contrast between the elemental areas and developing outputs to be supplied to the logic circuitry.
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