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. Author manuscript; available in PMC: 2018 Jun 29.
Published in final edited form as: Anal Chem. 2018 Mar 20;90(7):4461–4469. doi: 10.1021/acs.analchem.7b04749

Figure 5.

Figure 5

Dynamic sampling Raman imaging experimental results. (a) Measurement locations correspond to the stopping criterion (15.8% sampling percentage). (b) Reconstructed Raman image. (c) Reference image reconstructed after 35% of all pixels locations are measured. (d) Difference between reconstructed image at 15.8% sampling percentage and the reference image. 67 pixels are different, corresponding to 0.41% difference. In (a, b, and c), red pixels correspond to form I polymorph, blue pixels correspond to form II polymorph, black pixels correspond to background, and gray pixels correspond to unmeasured locations. In (d), gray pixels correspond to locations where reconstructed image is the same as the ground truth image, and cyan pixels correspond to locations where reconstructed image is different from the ground truth image.