منابع مشابه
I STUDIES IN DISPLAY SYMBOL LEGIBILITY PART VIE : Legibility
This report describes the findings of a study in symbol legibility which investigated the reading time and errors for common five-letter words when they are projected by a solid stroke and when they are shown by a broken stroke. The latter was produced on a 945-line TV monitor at 10, 7, and 5 active lines per symbol height. This study is similar to an earlier report on the readability of common...
متن کاملOptimizing the Legibility of Symbol Highway Signs
Introduction Symbol (i.e., "pictorial") highway signs yield legibility distances which are on average twice as great as those achieved for their text sign counterparts. However, the relative superiority of symbol signs is neither uniform nor universal. Some symbol signs are legible from 3-times as far away while other poorly designed symbol signs can be recognized at only half the distance of t...
متن کاملFourier Techniques for Optimizing Symbol Highway Sign Legibility
Symbol (i.e.,"pictorial") highway signs yield legibility distances which are on average twice as great as those achieved for their text sign counterparts. Howevcr. the relative superiority of symbl signs is neither uniform nor universal. Some symbol signs are legible from 3-times as far away while other p r l y designed symbol signs can be recognized at only half the distance of their textual e...
متن کاملStudies of Display Symbol Legibility: Xxi. the Relative Legibility of Symbols Formed from Matrices of Dots
The purpose of this study was to determine the legibility of symbols formed from matrices which contained different numbers of dot elements. A set of alphanumeric symbols was constructed from each of the following dot matrices: 3x5, 5x7, 7x 11, and 9 x 15. The four symbol, sets were shown for identification to one group of operators under nearly optimal viewing conditions and to a second group ...
متن کاملUsing the "Blur Tolerance" Technique to Predict and Optimize the Legibility Distance of Symbol Highway Signs
This study investigates the hypothesis that variations in symbol sign legibility distance can be accounted for on the basis of a sign's dependence upon high spatial frequency contours to convey critical information. Using digital image processing techniques, highway signs were blurred to remove all high spatial frequency information. A blur recognition threshold was established for each experim...
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ژورنال
عنوان ژورنال: Journal of the Visualization Society of Japan
سال: 1997
ISSN: 1884-037X,0916-4731
DOI: 10.3154/jvs.17.66_173