GRAPHICAL-DATA-PROCESSING RESEARCH STUDY AND EXPERIMENTAL INVESTIGATION.
Quarterly rept. no. 1, 1 Feb-30 Apr 66.
STANFORD RESEARCH INST MENLO PARK CALIF
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The hardware, software, techniques, and experience that were developed under the preceding Contract DA 36-039 AMC-03247E are briefly reviewed and are used in assessing the subject matter for further experiments. The criteria given most weight in evaluating the various types of graphical data are that the symbols be hand-drawn, that they be produced by a writing instrument that gives strokes of appreciable width, and that they occur in a situation that requires selective attention and the use of context. They are to appear in a free-field--i.e., a field without boundaries or special reference marks. The subject matter selected was computer coding sheets, where the computer language determines the character set and contextual relationship the chosen programming language was FORTRAN. A special input system has been built and tested, and some initial results on reading coding sheets are reported. The conclusions that have been drawn regarding preprocessor design from the experiments with the 1024-image preprocessor are briefly summarized our present position is that we would like to use sample areas covering 0.1 to 1 of the field in our property detectors, and to have at least 10,000 samples. The limitations of the existing preprocessor in relation to the new requirements are discussed and the constants of two possible designs based on multiple cathode-ray tubes and tubes with a fiber-optic faceplate are examined. Author
- Computer Hardware