A multispectral imaging sensor radiometric calibration method and system
By selecting a reference band and formula (10), radiometric calibration under unstable solar radiation conditions was achieved on a multispectral imaging sensor, solving the problem of low calibration accuracy of multispectral imaging sensors in the cloud conditions in the prior art. It is applicable to multispectral imaging sensors for UAVs and ground mobile platforms.
CN121364010BActive Publication Date: 2026-07-21INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
- Filing Date
- 2024-07-19
- Publication Date
- 2026-07-21
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Figure CN121364010B_ABST
Abstract
The present application provides a kind of multispectral imaging sensor radiation calibration method, comprising: S1, using multispectral imaging sensor acquisition image, the image includes diffuse reflection calibration board, the radiance reflected by diffuse reflection calibration board is calculated;S2, using multispectral imaging sensor to photograph target ground object, the radiance reflected by diffuse reflection calibration board is calculated;Based on the radiance reflected by diffuse reflection calibration board obtained in S1 and the radiance reflected by diffuse reflection calibration board obtained in S2, the surface reflectivity of the normalized diffuse reflection calibration board is calculated.The method of the present application can calibrate the multispectral imaging sensor carried on unmanned aerial vehicle or ground mobile platform under any weather condition.The present application also correspondingly provides a kind of multispectral imaging sensor radiation calibration system.
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