Fig. 8.

In vivo hyperspectral reflectance imaging of a tumor with GFP. A mirror is used to aid in capturing the entire tumor during imaging. (a) Reflectance images at different wavelength bands. 508 nm and 510 nm are the emission peaks for GFP under blue excitation. (b) An RGB composite image generated from the tumor hypercube. (c) Red solid line: the average reflectance spectra of the vessels inside tumor region; blue dotted line: the average reflectance spectra of randomly selected nonvessel tumor regions; green dash-dot line: the average of randomly selected normal regions around tumors. (Note: pixels are only selected from the tumor region that is not in the mirror).