Strategies to scan pictures with automata based on Wang tiles
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 45 (2011) no. 1, pp. 163-180.

Wang automata are devices for picture language recognition recently introduced by us, which characterize the class REC of recognizable picture languages. Thus, Wang automata are equivalent to tiling systems or online tessellation acceptors, and are based like Wang systems on labeled Wang tiles. The present work focus on scanning strategies, to prove that the ones Wang automata are based on are those following four kinds of movements: boustrophedonic, “L-like”, “U-like”, and spirals.

DOI : 10.1051/ita/2011016
Classification : 68Q05, 68Q10, 68Q45
Mots-clés : picture languages, 2D languages, Wang systems, 2D automata, scanning strategies 
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     title = {Strategies to scan pictures with automata based on {Wang} tiles},
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Lonati, Violetta; Pradella, Matteo. Strategies to scan pictures with automata based on Wang tiles. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 45 (2011) no. 1, pp. 163-180. doi : 10.1051/ita/2011016. http://www.numdam.org/articles/10.1051/ita/2011016/

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