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Bounds on the capacity of constrained two-dimensional codes

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2 Author(s)
Forchhammer, S. ; Dept. of Telecommun., Tech. Univ. Denmark, Lyngby, Denmark ; Justesen, J.

Bounds on the capacity of constrained two-dimensional (2-D) codes are presented. The bounds of Calkin and Wilf (see SIAM J. Discr. Math., vol.11, no.1, p.54-60, 1998) apply to first-order symmetric constraints. The bounds are generalized in a weaker form to higher order and nonsymmetric constraints. Results are given for constraints specified by run-length limits or a minimum distance between pixels of a given value

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Information Theory, IEEE Transactions on  (Volume:46 ,  Issue: 7 )