Relative importance of spatial image characteristics in reproduction of alphanumeric characters was examined and significant anisotropy was found; at low distortion levels, horizontal image degradation is less objectionable than vertical but at higher levels vertical distortion is less objectionable; central portions of characters are found less important for legibility; upper portions carry more legibility information than lower portions; implications of these findings on image transmission systems are discussed.
Anisotropy in alphanumeric reproduction tolerances
Applied Optics
Applied Optics ; 6 , n 2
1967
5 pages
Article (Journal)
English
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