• K. Bharathivelan
• V. Devi Rajaselvi
• S. Saravanan

Pictures could be regarded as sentences in a picture language. This suggested the idea that notions and techniques of language theory could be extended to two dimensional environments. The recognizability of rectangular and hexagonal picture languages using tiling systems is already studied. Using coordinate systems in triangular grid we have defined the recognizability of triangular picture languages. We have investigated the notion of recognizability of iso - triangular picture languages by a new formalism called online tessellation automata. On the other hand infinite pictures are digitized images which occur in the grid of two dimensional planes. The study about the recognizability of infinite arrays is interesting ones. We extend this study to infinite triangular pictures. Also the notion of recognizability of infinite triangular pictures by a new formalism called online tessellation automata is studied.

Online Tessellation Automata, Infinite Triangular Array Languages.

"Recognizability of Finite and Infinite Triangular Pictures by Online Tessellation Automata", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.961-967, June 2019, Available :http://www.jetir.org/papers/JETIR1906Y60.pdf

"Recognizability of Finite and Infinite Triangular Pictures by Online Tessellation Automata", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp961-967, June 2019, Available at : http://www.jetir.org/papers/JETIR1906Y60.pdf