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Reposition Camera

Visual Inspection of Target; Determine highest radiance orientation. Image target and cal target in full sun, adjust exposure to ensure no saturation. Fix Exposure / Gain Settings. Adjust camera spatial and irradiance response, g(i,j) A ’ = A •g(i,j), B ’ = B •g(i,j), etc.

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Reposition Camera

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  1. Visual Inspection of Target; Determine highest radiance orientation Image target and cal target in full sun, adjust exposure to ensure no saturation Fix Exposure / Gain Settings Adjust camera spatial and irradiance response, g(i,j) A’ = A•g(i,j), B’ = B•g(i,j), etc. Image Cal Target in Full Sun (A) Image Cal Target in Shadow (B) Addt’l spectral bands? Spatial registration of A-D images (each pol and spectral band) Change Spectral Filter YES Radiance Calibration NO Downsample A-D images--further improve registration accuracy Set Pol Filter Orientation Image Target in Full Sun (C) Image Target in Shadow (D) Calibrate solar radiance, A’ - B’ Reposition Camera Determine BRDF (L0) π -1•(C’ - D’)/(A’ - B’) and Stokes radiance Addt’l spectral bands? Change Spectral Filter YES YES Generate spatial-resolution dependent pBRVF statistics (DOP and χ distribution) Additional positions? YES Addt’l Pol Orient? NO NO Target Measurement Incorporate data into a background pBRDF model NO PROCESSING OUTDOOR MEASUREMENTS

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