计算2┐维RLL码容量率的一种算法

An Approach for Computing The Capacity Rate of Two Dimensional Runlength Limited Code

２－维游程限长（ＲＬＬ）码是１维游程限长码的拓展，可应用于２－维条形码及电荷耦合器件。２－维ＲＬＬ码具有水平和垂直两个方向的游程约束。

The two dimensional runlength limited code which is the extension of one dimensional analogue is a set of binary arrays with runlength constraints both horizontally and vertically.It has been applied in two dimensional bar codes and charge coupled devices(CCD).In this paper an approach for computing the capacity rate of the code is provided and applied in some examples.