A New Form Cell Rectangle Recognition Algorithm
XU Yanbing · Jisuanji gongcheng · 2006
The form recognition algorithms in existence are inefficient,and only can abide tiny broken lines.This paper presents an algorithm based on vertex chain code for form cell rectangle recognition,the algorithm uses region-labeling robot to label the inner border of a form cell to get its vertex chain code,using the characters of the vertex chain code,the algorithm can remove the sawteeth on the form frame line efficiently and restore the form frame lines and get the region of the form cell by searching the vertex chain code of the four angles of the cell.Experiments prove that the algorithm has the advantages of high speed,high robustness and being able to resist broken form frame lines.