翻訳と辞書
Words near each other
・ Picture Day
・ Picture Day (film)
・ Picture dictionary
・ Picture disc
・ Picture editor
・ Picture Editors' Awards
・ Picture Exchange Communication System
・ Picture for Women
・ Picture frame
・ Picture Frame Seduction
・ Picture framing glass
・ Picture function
・ Picture Gallery (solitaire)
・ Picture hat
・ Picture Imperfect
Picture language
・ Picture line-up generation equipment
・ Picture lock
・ Picture maze
・ Picture Me Broken
・ Picture Mommy Dead
・ Picture Motion Browser
・ Picture Music
・ Picture Music International
・ Picture of Health
・ Picture of Heath
・ Picture Of My Own
・ Picture of Perfect Youth
・ Picture of You
・ Picture of You (album)


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Picture language : ウィキペディア英語版
Picture language
In formal language theory, a picture language is a set of ''pictures'', where a picture is a 2D array of characters over some alphabet.
For example, the language L = \left \ defines the language of squares composed of the character a. This language L contains pictures such as:
a a a a \in L
a, a, a a
The study of picture languages was initially motivated by the problems of pattern recognition and image processing, but two-dimensional patterns also appear in the study of cellular automata and other parallel computing models. Some formal systems have been created to define picture languages, such as array grammars and tiling systems.
==References==

* D. Giammaresi, A. Restivo. (Two-dimensional languages ). In A. Salomaa, G. Rozenberg (Eds.), ''Handbook of Formal Languages'', Vol. 3, Beyond Words, Springer, Berlin, 1997, pp. 215–267.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Picture language」の詳細全文を読む



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