Urban growth simulation form correction method and system based on grid-vector cooperation

By employing a raster-vector collaborative urban growth simulation method, which combines remote sensing imagery and vector road data to form fused spatial units and utilizes morphological correction strategies to optimize the proportion of urban land area, the method solves the balance problem between computational efficiency and morphological realism in traditional CA models, and achieves more accurate urban growth simulation.

CN121982159APending Publication Date: 2026-05-05CHINA UNIV OF GEOSCIENCES (WUHAN)
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Patent Information

Application Number
CN202610051910.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-15
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing technologies, traditional raster CA models have high computational efficiency but the simulation results are coarse and cannot accurately reflect real geographic elements; vector CA models rely on a single data source, resulting in insufficient data timeliness and precision, increased computational load, and difficulty in achieving a balance between computational efficiency, process rationality, and morphological realism.

Method used

A raster-vector collaborative urban growth simulation method is adopted. By segmenting remote sensing image data and processing vector road data to form fused spatial units, the raster CA simulation results are corrected by combining morphological correction strategies. Static and dynamic correction strategies are used to optimize the proportion of urban land area, thereby achieving accuracy and morphological realism in urban growth simulation.

Benefits of technology

It improves the precision of spatial unit division and the reliability of simulation results, achieves a balance between computational efficiency and morphological realism, and forms a two-layer structure of simulation calculation layer and morphological control layer, thereby improving simulation and correction efficiency.

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Abstract

The invention discloses an urban growth simulation form correction method and system based on grid-vector collaboration, and the method comprises the steps: segmenting remote sensing image data to obtain segmented patches, and forming a fused space unit in combination with a block unit obtained through the processing of vector road data; inputting the land utilization and driving factor data into the grid CA model to obtain converted city cells, and obtaining a city growth simulation result map of the grid CA; and correcting the urban growth simulation result graph of the grid CA by using a form correction strategy to obtain a final corrected urban growth simulation result graph. According to the method, the fused composite space unit is obtained by combining the segmented plaque and the block unit, the fineness of the divided space unit is improved, a more accurate space base is provided for form correction, and effective balance among calculation efficiency, process rationality and form authenticity is realized by utilizing a grid simulation-vector correction cooperation mechanism.
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