We analyze the quality of condensed text on LCD displays, generated with unhinted and hinted bilevel characters, with traditional anti-aliased and with perceptually-tuned grayscale characters. Hinted bi-level characters and perceptually-tuned grayscale characters improve the quality of displayed small size characters (8pt, 6pt) up to a line condensation factor of 80%. At higher condensation fac...

It is thought by cognitive scientists and typographers alike, that lower-case text is more legible than upper-case. Yet lower-case letters are, on average, smaller in height and width than upper-case characters, which suggests an upper-case advantage. Using a single unaltered font and all upper-, all lower-, and mixed-case text, we assessed size thresholds for words and random strings, and read...

Standstill behavior by a robot is deemed to be ineffective and inefficient convey robot’s intention yield priority another party in spatial interaction. Instead, robots could their thus next action via motion. We developed back-off (BO) movement communicate the of yielding pedestrians at bottlenecks. To evaluate human sensory perception subjective legibility, BO compared three other motion stra...

Eighty children (kindergarten through 4th grade) performed discrimination and identification tasks for tachistoscopically-presented letter pairs. Letter pairs manipulated font (Times New Roman, Arial), point size (12and 18-point) and letter-pair discrimination difficulty (easy, medium, and hard). Higher percent correct scores occurred for the Arial font and 18-pt size, and performance was bette...

We present a novel method for automatically enhancing (or diminishing) the legibility of typefaces without altering grapheme size or energy. Just as caricature generators enhance those features which most distinguish a targeted face from the average face, we generate an enhanced grapheme by exaggerating those aspects which distinguish that grapheme from an average grapheme. More particularly, w...