Method and device for completing aerosol optical depth data, electronic equipment and medium

By combining a 3D encoding/decoding network with spatial and temporal attention modules and using underlying surface geographic features to guide weights, the problems of temporal continuity disruption and lack of geographic feature guidance in aerosol optical thickness data completion are solved, achieving high-precision and physically consistent data completion.

CN122335539APending Publication Date: 2026-07-03HEBEI SAILHERO ENVIRONMENTAL PROTECTION HIGH TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI SAILHERO ENVIRONMENTAL PROTECTION HIGH TECH
Filing Date
2026-05-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing aerosol optical thickness completion methods suffer from disrupted temporal continuity, lack of geographic feature guidance, and lack of physical constraints in the completion results, leading to inaccurate completion of missing AOD data areas.

Method used

A three-dimensional encoding and decoding network is used in conjunction with spatial and temporal attention modules. Auxiliary data is used as the guiding weights for the underlying surface geographic features. Through spatial and temporal feature extraction, the length of the temporal dimension and the physical order are preserved. Only missing areas are filled in to ensure that the filling results are consistent with the actual observations.

Benefits of technology

It significantly improves the accuracy of aerosol optical thickness data completion, ensuring that the completion results are consistent with the actual observations, conform to the non-negative physical definition of AOD, and preserve the continuity of time series and the physical laws of spatial characteristics.

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Abstract

This application provides a method, apparatus, electronic device, and medium for aerosol optical thickness data completion, belonging to the field of remote sensing data processing and atmospheric environment monitoring. The method includes: acquiring multi-source data; encoding the multi-source data using a 3D encoding / decoding network to obtain an initial feature map; using auxiliary data as guiding weights for underlying surface geographic features, and combining this with a spatial attention module and the initial feature map to obtain a spatial feature map; obtaining a temporal feature map based on a temporal attention module based on the initial feature map; concatenating the spatial and temporal feature maps, and then adding them element-wise to the initial feature map to obtain a comprehensive feature map; decoding the comprehensive feature map to obtain an initial completion result; converting the initial completion result into corresponding completion values; determining missing regions based on each completion value; and completing the missing regions to obtain the completed aerosol optical thickness data. This application can improve the accuracy of aerosol optical thickness data completion.
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