Alfredo Dubra's PhD thesis - Imperial College London
Alfredo Dubra's PhD thesis - Imperial College London
Alfredo Dubra's PhD thesis - Imperial College London
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3. Data processing<br />
mk1/46<br />
(a)<br />
(b)<br />
st3/15<br />
(c)<br />
(d)<br />
im4/17<br />
(e)<br />
(f)<br />
pb2/92<br />
(g)<br />
(h)<br />
Figure 3.1: Estimation of the interferogram modulation carrier frequency intensity<br />
modulation (left) from spectra (right). The frequencies between the red lines indicate<br />
the area where we expect to have only the DC term. In the top row, we see a normal<br />
smooth front tear surface, the second row shows a rough surface typical after blink, in<br />
the third small bubbles on the tear surface can be noticed and at the bottom a clear<br />
bump in the tear formed by the one of the eyelids is shown.<br />
45