A method and device for making an electronic sand table about a smart city

Abstract

The invention discloses a method and device for making an electronic sand table in a smart city. The method includes: acquiring a satellite image; intercepting a contour image from the satellite image according to a preset contour feature, and the contour image includes a terrain image and A building image; extracting several image features from the outline image; making and displaying a city model of an electronic sand table based on the several image features. The present invention can perform image classification on satellite images, then extract the features in the images, and finally generate corresponding city models based on the image features. The amount of data processed in the whole process is small, which can reduce the difficulty of model production, shorten the production time, and improve production efficiency. At the same time, model making based on feature information can improve the accuracy of the model and increase the display effect of the model.

Description

technical field [0001] The invention relates to the technical field of smart cities, in particular to a method and device for making an electronic sand table related to smart cities. Background technique [0002] Electronic sand table specifically refers to the production of electronic models according to a certain proportion based on topographic maps, aerial photos or on-site terrain. In recent years, it has been used in various fields, such as urban planning, real estate display, scenic spot introduction, etc. [0003] At present, the commonly used production method is to collect the outline information and appearance information of the display target (such as engineering buildings or machine parts and equipment), use the outline information and appearance information as the establishment of a virtual model (2D or 3D model) of the display target, and finally convert the virtual model To complete production in the electronic sandbox. [0004] However, the current commonly ...

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Problems solved by technology

[0004] However, the current commonly used production methods have the following technical problems. Since data of different capacities need to be collected for different display objects, if the display object is large, the workload of collecting data will also increase, and the time of use will also increase. For large-scale or wide-area electronic sand tables, not only is it difficult to make models, but also the number of models to be made is large, which further increases the production time and reduces production efficiency

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