We introduce lattice light-sheet system with an incoherent detection module that scans an extended FOV of 208x208 μm2. We demonstrated the IHLLS 3D imaging capabilities, amplitude and phase distributions, of polystyrene beads and nerve cells.
We apply two-wavelength phase shifting interferometry to generate 3D surface profile maps of spent bullet cartridge cases. From the captured interferograms, an optimized algorithm was used to calculate a phase profile from which a precise digital surface map of the cartridge casing may be produced. This 3D surface profile is used to enhance a firearms examiner's ability to uniquely identify distinct features or toolmarks imprinted on the casing when the weapon is fired. These features play a key role in the matching process of ballistic forensic examination.
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