S. M. Gupta
ABSTRACT
Systematic differences in recognition/confusion due to font variation is estimated by using confusion matrices of the full 26 capital letters of the English alphabet in 5 × 7 dot matrix font and “Keepsake” conventional stroke font. Average correct recognition was controlled to 50% by limiting brightness and duration of tachistoscopic displays for each font to individually determined levels for each of the four subjects. Each stimulus symbol was presented 45 times to each subject, resulting in 180 trials per letter per font.
By comparing the obtained data to that reported by Townsend (1971), Craig (1979) and Gilmore et al.(1979), estimates of the differences in recognition/confusion attributable to medium, font and subject differences were isolated. This comparison reveals a substantial difference in recognition/confusion processes when the observer sees the display on a video screen versus seeing it projected on a white screen.
- 1.Graig, J.C. A confusion matrix for tactually presented letters. Perception and Psychophysics, 1979, 26, 409-411.Google Scholar
Cross Ref
- 2.Geyer, L.H. and C.G. DeWald. Feature lists and confusion matrices. Perception and Psychophysics, 1973, 14, 471-482.Google ScholarCross Ref
- 3.Geyer, L.H. and S.M. Gupta. Recognition/confusion of dot matrix vs. conventional font capital letters. Perception and Psychophysics, 1981, 29, 280-282.Google ScholarCross Ref
- 4.Gilmore, G.C., H. Hersh, A. Caramazza and J. Griffin. Multidimensional letter similarity derived from recognition errors. Perception and Psychophysics, 1979, 25, 425-431.Google ScholarCross Ref
- 5.Gupta, S.M. and L.H. Geyer. On tactile and visual recognition. Perception and Psychophysics, 1980, 27, 579-580.Google ScholarCross Ref
- 6.Townsend, J.T. Alphabetic confusion: A test of models for individuals. Perception and Psychophysics, 1971, 9, 449-454. (a)Google ScholarCross Ref
- 7.Townsend, J.T. Theoretical analysis of an alphabetic confusion matrix. Perception and Psychophysics, 1971, 9, 40-50. (b)Google ScholarCross Ref
Index Terms
- Effect of font and medium on recognition/confusion
Recommendations
Multi-font printed Mongolian document recognition system
Special Issue DRR09Mongolian is one of the most common written languages in China, Mongolia, and Russia. Many printed Mongolian documents still remain to be digitized for digital library applications. The traditional Mongolian script has a unique vertical cursive writing ...
Arabic font recognition based on diacritics features
Many methods have been proposed for Arabic font recognition, but none of them has considered the specialty of the Arabic writing system. Most of these methods are either general pattern recognition approaches or application of other methods which have ...
KAFD Arabic font database
Font recognition is useful for improving optical text recognition systems' accuracy and time, and to restore the documents' original formats. This paper addresses a need for Arabic font recognition research by introducing an Arabic font recognition ...
Comments