Complex table and method for identifying handwritten numbers in complex table
A digital recognition, form technology, applied in the field of image recognition
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[0036] In order to make the technical solution and usage method of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0037] The invention provides a complex form and its internal handwritten number recognition method, such as figure 1 shown, including the following steps:
[0038] Step 1: Template table cell structure description;
[0039] 1-1. Line detection
[0040] The corner points in the table must form a line segment with the straight line. To do this, binarize this image and detect straight lines. Since the global Hough transform is affected by noise, the set of straight lines will be very messy, so the present invention adopts the cumulative Hough transform. Set the sliding window to , the step size to t, select an appropriate threshold, set the length of the shortest line segment to be detected, and perform Hough transform to obtain the line segment set. Judging whether ...
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