Method, device and storage medium for recognizing chart

Abstract

A method for identifying a chart comprises: acquiring an object image containing the chart, wherein the chart comprises a labeled area defined by a first coordinate axis and a second coordinate axis that intersect with each other, first coordinate labels along the first coordinate axis, second coordinate labels along the second coordinate axis, and a plurality of characteristic labels within the labeled area; processing the object image with a trained neural network to identify and separate the chart from the object image; processing the chart with a trained neural network to identify the first coordinate labels, the second coordinate labels, and the plurality of characteristic labels; generating a chart coordinate system based on the identified first coordinate labels and second coordinate labels, wherein the chart coordinate system fits the first coordinate axis and the second coordinate axis of the object image; determining coordinate values of each of the plurality of characteristic labels based on an identified position of the characteristic label in the chart coordinate system.