Mathematical formula identifying and coding method

Abstract

The invention discloses a mathematical formula identification code method, which belongs to the formula identification field. The steps of the method comprise collecting and inputting a printing style mathematical formula image or an on-line handwriting stroke sequence, performing symbol division on the input printing style mathematical formula image or the on-line handwriting stroke sequence, performing symbol identification treatment, merging common function names, setting and identifying a user-defined code corresponding to the common function names, performing structural analysis treatment on results of symbol division, identification and function name merging, obtaining a structural relational tree of the whole formula, expressing language formats according to an editable computer formula, and encoding the obtained structural relational tree of the whole formula.

Description

technical field [0001] The invention belongs to the field of formula identification, and relates to a mathematical formula identification and coding method applied in an integrated development environment. More specifically, introduce visual recognition and coding of mathematical formulas in an object-oriented visual programming environment, recognize handwritten / scanned mathematical formulas, and encode them into editable computer formula expression languages, and further, convert them into realizable The mathematical formula is calculated by the computer language command line to simplify the programming process and difficulty. Background technique [0002] At present, visual integrated development environments (such as Visual studio) are becoming more and more popular. These development environments can easily realize the design of complex tools such as forms, lists, buttons, and browsers in the form of controls, but there is no development environment that supports mathem...

AI Technical Summary

Problems solved by technology

[0006] The contour projection segmentation method (see references [5, 6]) saves computational overhead to a certain extent, but the contour projection method is not perfect in super / subscript and matrix processing, and cannot handle similar Such a modifier expression for a symbol above multiple symbols

[0007] The graph rewriting method (see references [7, 8]) is less affected by character recognition errors and local structure analysis errors, but this method believes that the calculation method of setting the cost value of different relations reduces the adaptability of the method and the calculation large amount

[0008] Based on the process-oriented method (see reference [9]), the analysis process is too simple, and it is difficult to analyze complex mathematical formulas

Methods based on baseline analysis (see Ref. [10]) have the advantage of fast analysis, but are less robust

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