A Combined Side-Slither Relative Radiometric Calibration Method for Non-Collinear TDI-CCDs | IEEE Journals & Magazine | IEEE Xplore

A Combined Side-Slither Relative Radiometric Calibration Method for Non-Collinear TDI-CCDs


Abstract:

Relative radiometric calibration (RRC) is a crucial step in enhancing the quality of satellite images, and it serves as a fundamental technology to ensure the reliability...Show More

Abstract:

Relative radiometric calibration (RRC) is a crucial step in enhancing the quality of satellite images, and it serves as a fundamental technology to ensure the reliability of information extracted from these images. Traditional side-slither RRC methods typically use homogeneous scenes as imaging sites to ensure approximately identical input for detectors of multiple non-collinear time-delay integration-charge-coupled devices (TDI-CCDs). However, as spatial resolution improves, the demand for site uniformity is increasing, limiting the application of these traditional methods. Therefore, we propose a push-broom data-aided side-slither RRC method, which involves sequential calibration of a single TDI-CCD and an entire field of view (FOV). The first step is designed to eliminate response differences within each TDI-CCD, while the latter incorporates push-broom data to determine the adjacent radiometric relationship via adjustment with maximum standard deviation (SD) preservation (MSDP). Experiments show that our method has achieved better results in both visual effect and quantitative assessment, compared with the other two advanced RRC methods.
Published in: IEEE Geoscience and Remote Sensing Letters ( Volume: 20)
Article Sequence Number: 5509905
Date of Publication: 12 September 2023

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