Handwritten chemical formula identification and trimming method

Abstract

The invention discloses a handwritten chemical formula identification and trimming method. The method comprises the following steps: 1, carrying out pretreatment; a handwriting point sequence of a chemical equation is provided, and a segmentation algorithm is executed on the handwriting point sequence to obtain; the method comprises the following steps: obtaining a picture of independent characters according to a chemical equation, a CNN and a dictionary optimization operation recognition algorithm are adopted to obtaining a character string representing the chemical equation by utilizing a CNN and a dictionary optimization operation recognition algorithm, and operating a trimming algorithm is operated to obtain a correct chemical equation trimming result and display the result in a standard format; according to the method, handwritten chemical equation identification is carried out based on CNN and dictionary optimization; the method pen is suitable for non-continuous writing and . tThe problem of identifying the chemical equation on the handwriting equipment is solved; by means of the chemical equation trimming method based on element conservation and electron conservation, the trimming problem of general and special reactions in the middle school range is solved, the chemical teaching efficiency can be effectively improved by comprehensively applying the chemical equation trimming method and the chemical equation trimming method, the error probability of the chemical equation in the trimming process is reduced, and the trimming accuracy is improved.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a method for recognizing and balancing handwritten chemical formulas. Background technique [0002] In chemistry teaching, learning as a participant is more effective than passive learning. In the traditional chemistry teaching process, when the writer writes chemical equations, the written chemical equations cannot be correctly recognized and processed, which directly affects the effectiveness and accuracy of chemistry teaching. At the same time, in the process of chemistry teaching in middle schools, the problem of inaccurate balance of general and special reactions is prone to occur, which leads to the need to spend a lot of time to correct the inaccurate balance in the chemistry teaching process, and the efficiency and effect of chemistry teaching are affected. Based on the existing CNN image recognition technology, the present invention proposes a dictionary-optimized handwr...

AI Technical Summary

Problems solved by technology

[0002] In chemistry teaching, learning as a participant is more effective than passive learning. In the traditional chemistry teaching process, when the writer writes chemical equations, the written chemical equations cannot be correctly recognized and processed, which directly affects the effectiveness and accuracy of chemistry teaching. At the same time, in the process of chemistry teaching in middle schools, the problem of inaccurate balance of general and special reactions is prone to occur, which leads to the need to spend a lot of time to correct the inaccurate balance in the chemistry teaching process, and the efficiency and effect of chemistry teaching are affected.

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