Figure 7
Lens-free imaging of a blood smear using wavelength-scanning pixel super-resolution and synthetic aperture phase retrieval. Wavelength-scanning range: 520–541 nm, scanning step: 3 nm. Angle scanning (two axes) range: −35° to 35° with 5° steps. (a) Lens-free raw hologram captured using a CMOS image sensor with a pixel size of 1.12 μm and a FOV of ~20.5 mm2. (b) Lens-free reconstruction of a sub-region, marked with a yellow square within the full FOV. (c) Conventional lens-based microscope image using a 20 × objective lens (NA=0.45).
