针对IC卡的版面复杂性及版面质量，对IC卡在线检测中的码号定位分割问题进行了研究，提出了一种IC卡码号在线检测的定位分割方法。该方法采用预测样卡定位参数，结合初定位、宽区间定位、区间缩小精确定位对码号区定位，解决了不同版面、不同位置码号的IC卡定位问题。对定位方法进行了详细论述，采用求多投影直方图综合分割法对码号字符进行分割，有效地解决了IC卡在线检测中码号的定位分割问题。实验结果表明了方法的可行性与实用性。

Aiming at the complexity and the quality of IC cards, the location of code region and the segmentation of characters on IC card are studied. An on-line method of locating code region and segmentating characters on IC card are presented in the paper. It is based on the combination of the pre-testing location, the original position locating, the coarse region locating and the exact one. The location for different kinds of IC cards and different position of code regions on IC card are solved. The location method is discussed in detail. The multi-projection histograms are presented to segment the code. The experiment shows the result of the method is good.