Topographic map scale identification method and device, storage medium and electronic equipment

Abstract

The invention discloses a topographic map scale identification method and device, a storage medium and electronic equipment, and the method comprises the steps: constructing a knowledge-guided image scale space through employing a plurality of topographic maps based on expert knowledge, and constructing a training set, a verification set and a test set based on the image scale space; inputting the training set into a neural network model, and adjusting hyper-parameters of the neural network model by using images in the training set to obtain an adjusted target network model; and processing the target image by using the target network model to obtain the scale of the target image. According to the method, manual operation is replaced with an automatic identification method, and the identification efficiency of the topographic map scale is improved.

Description

technical field [0001] The present application relates to the technical field of grid electronic topographic map and computer vision, and in particular, to a method, device, storage medium and electronic device for identifying the scale of a topographic map. Background technique [0002] Topographic map refers to the method of projecting the features and landforms on the ground horizontally (projected along the vertical line to the horizontal plane), and scaled down to the drawing. This kind of map is called a topographic map. . The area of ​​topographic mapping is relatively small, so it can accurately and detailedly represent natural geographical elements such as surface landforms, hydrology, topography, soil, vegetation, etc., as well as social and economic elements such as settlements, traffic lines, boundary lines, and engineering buildings. Topographic maps are drawn based on topographic surveys or aerial photography data, with minimal error and projection distortion....

AI Technical Summary

Problems solved by technology

[0003] The traditional topographic map scale identification method is mainly manual visual interpretation, and inspectors need to be proficient in topographic map drawing methods, requiring a lot of topographic map expert knowledge

This has led to the scarcity of the number of inspectors, and the labor intensity is high.

Furthermore, the difference between topographic maps of different scales, especially similar scales, is very small, resulting in slow detection speed and inability to operate 24 hours a day, which greatly reduces the efficiency of topographic map verification

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