  In the first stage, we use the FCN to predict the potential regions of the table row (column) separators, so as to obtain the bounding boxes of the basic grids in the table.
<meaning-changed>   In the first stage, we use the FCN to predict the potential regions of the table row (column) separators, so as to obtain the bounding boxes of the basic grids in the table.
 In the first stage, we apply the splitter to predict the potential regions of the table row (column) separators, so as to obtain the bounding boxes of the basic grids in the table.