An automated mapping method and apparatus for detached houses in topographic maps

By preprocessing remote sensing images and identifying models to determine the outline of detached houses, topographic map-sized images are generated, solving the problems of low efficiency and poor quality in traditional topographic maps, and realizing automated, efficient and high-quality detached house mapping.

CN116108527BActive Publication Date: 2025-10-28BEIJING AEROSPACE HONGTU INFORMATION TECH
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Patent Information

Application Number
CN202310023555.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-09
Publication Date
2025-10-28
Estimated Expiration
2043-01-09

AI Technical Summary

Technical Problem

Traditional 1:50,000 topographic maps have low efficiency and poor quality in identifying and mapping independent houses, making manual interpretation difficult and resulting in a large number of omissions.

Method used

By acquiring and preprocessing remote sensing images, the outline of detached houses is determined using a detached house recognition model, and topographic map-sized images of detached houses are generated based on the outlines. This includes image registration, grayscale conversion, rotation processing, cropping, and masking. An external rectangle is constructed to determine coordinate information.

Benefits of technology

It eliminates the need for manual judgment and drawing of individual rooms, improving the efficiency and quality of judgment and drawing, and reducing omissions.

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Abstract

This invention provides an automated mapping method and apparatus for detached houses in topographic maps, relating to the technical field of topographic map processing. The method includes: acquiring a remote sensing image to be processed and preprocessing it to obtain a target remote sensing image; inputting the target remote sensing image into a detached house recognition model to determine the outline of the detached houses in the target remote sensing image; determining the coordinate information of the detached houses based on their outlines, wherein the coordinate information includes the coordinates of the center point of the detached house and the coordinates of directed points of the detached house; and generating a topographic map-sized image of the detached house based on the coordinate information, the detached house's attribute file, and the detached house's metadata file. This invention solves the technical problems of low efficiency and poor quality in the prior art when judging and drawing detached houses.
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Citation Information

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