Fig. 5
From: Cellular-resolution in vivo tomography in turbid tissue through digital aberration correction
Improving the transverse performance of the defocus correction by increasing the number of sub-apertures. a-c Control images of microparticles located 250 μm above the focal plane. The transverse resolution did not vary significantly with sub-aperture displacement in the control images. d-f Corresponding aberration-corrected images using two sub-apertures: oo and ee. g-i Corresponding aberration-corrected images using three sub-apertures: oo, ee, and oe/eo. Insets: illustrations of sub-apertures. j Comparison of the transverse FWHM of the microparticles ongoing from the control image (a) to the corrected image with two sub-apertures (d) to the corrected image with three sub-apertures (g). k Comparison of the transverse FWHM of the microparticles ongoing from the control image (b) to the corrected image with two sub-apertures (e) to the corrected image with three sub-apertures (h). l Comparison of the transverse FWHM of the microparticles ongoing from the control image (c) to the corrected image with two sub-apertures (f) to the corrected image with three sub-apertures (i). Mean transverse FWHMs of each plot is indicated in (j-l). SA, sub-apertures; R, radius of the illumination beam. Transverse and vertical scale bars: 100 μm