Patent ID: 7106904

Claim:
A form identification method of identifying types of forms, comprising the steps of: extracting one or a plurality of cells, lines, or character lines included in an inputted form from the inputted form; extracting one or a plurality of coordinates, as one or a plurality of inputted features, of a center of each of the cells, lines, or character lines as said one or a plurality of features of the form; rotating either said one or a plurality of inputted features or a registered feature of a form which has previously been registered on a 90° unit basis; correcting said one or a plurality of inputted features by a micro angle on the basis of a micro inclination angle detected from the cells, lines or character lines; checking a matching of the one or a plurality of inputted features with the registered feature; setting the angle at which said one or a plurality of inputted features most coincides with said registered feature to a direction of the inputted form; and setting the type of form having the most coincident registered feature to a form identification result.