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Article Dans Une Revue ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences Année : 2022

Calibration of a light hemispherical radiance field imaging system

Résumé

Abstract. A light hemispherical radiance field imaging system based on fish-eye camera was developed for the measurement of the surface incident radiance in an urban environment, which is often affected by radiometric heterogeneity problems. A linear radiometric model and a polynomial fish-eye lens model are used. A temperature-dependent dark level model is proposed to improve the dark correction for high dynamic range photography. This paper describes the calibration procedure for spectral and geometrical radiance field measurements and presents the results of the calibration. The spectral radiometric calibration error is 2.07%, 1.34%, and 0.98% for blue, green, and red bands, respectively. The mean geometrical calibration error is 2.037 pixels.

Dates et versions

hal-03686554 , version 1 (02-06-2022)

Identifiants

Citer

Manchun Lei, Christian Thom, Christophe Meynard, Jean-Michael Muller. Calibration of a light hemispherical radiance field imaging system. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022, V-1-2022, pp.195-202. ⟨10.5194/isprs-annals-V-1-2022-195-2022⟩. ⟨hal-03686554⟩
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