Legibility in lecture theatres

Computational Assessment of Text Legibility in Lecture Halls

Text presented in lecture halls often simultaneously appears on multiple visual displays (e.g., blackboards, projection screens, video monitors), which should be legible to the entire audience seated in an ideal viewing area. Existing guidelines identify this area as fanshaped, but the origin of those guidelines and the data on which they are based are not specified. To supplement the guideline...

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...

Decision-making in operating theatres

Ensuring cleanliness in operating theatres.

High cleanliness of a hospital environment is necessary to ensure safe working conditions for the medical staff, a correct process of hospitalization and to protect hospital visitors, an aspect rarely mentioned. A supply of air cleaned in highly-effective air filters to hospital wards with air conditioning systems and exhaust of infected air will help in maintaining the required standards of cl...

Serifs and font legibility

Using lower-case fonts varying only in serif size (0%, 5%, and 10% cap height), we assessed legibility using size thresholds and reading speed. Five percentage serif fonts were slightly more legible than sans serif, but the average inter-letter spacing increase that serifs themselves impose, predicts greater enhancement than we observed. RSVP and continuous reading speeds showed no effect of se...