spectral directional reflectance factor

spectral directional reflectance factor

[′spek·trəl di′rek·shən·əl ri′flek·təns ‚fak·tər]
(analytical chemistry)
In spectrophotometric colorimetry, the ratio of the energy diffused in any desired direction by the object under analysis to that energy diffused in the same direction by an ideal perfect (energy) diffuser.
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