Stranica 75 [75]
OCR
Workflow for the capture of visible-reflected (VIS ) images Equipment requirements: e Camera e Visible/IR radiation sources e Visible bandpass filter (e.g. IDAS_UIBAR) e Macbeth colour chart (X-Rite ColourChecker) e Spectralon diffuse reflectance grey scale or any number of Spectralon diffuse reflectance standards as available (required for comparison to IRR/UVR images and post-processing of luminescence images). Set-up 1) Position the visible/IR radiation sources and the camera as shown in Figure 2-22 and according to the recommendations in section b. Object IR IR Reflected IR h Visible/IR light source a Reflected Visible Visible bandpass filter (e.g. IDAS-UIBAR) 2) Place the visible band-pass filter (e.g. IDAS UIBAR) in front of the camera. 3) If working in the studio, position the object following the recommendations referred to in section b. 4) If working outside the studio or in the field, position the visible/IR radiation sources and the camera around the subject accordingly. Version No. 1.0 67 Date : 14/10/2013
