Simulation of 3D Laser Imaging

Scattering models for range profiling and 2D-3D laser imagery

“…r r r r (16) The intensity of the total incoherent component is obtained by incoherent summation (summation of real variables) of the intensities calculated with the incoherent components of the N elementary facets. The different vectors in the expressions (13) and (16) …”

“…Using this mathematical approach, the different vectors calculated for each facet can be summed according to the formulas (13) and (16). Thus, for each facet, the complex elements of the coherent scattering matrix and the real elements of the incoherent cross-section matrix, expressed in the incidence polarization basis ( ) …”

“…We propose an alternative approach to the 3D reconstruction problem by taking advantage of the properties of scattered intensity, instead of using the scattering profile of the object. Our technique is based upon a 3D tomographic reconstruction 16,17 . The scenario is the following: the observed target is illuminated by a laser source deployed on any land or airborne vehicle.…”

Multiresolution greedy algorithm dedicated to reflective tomography

“…The idea is to apply a tomographic algorithm on reflective projections [13,11,6,2]: a filtered backprojection. It offers several ways of representing the scene [7,3,5,9] in three-dimensional optical imaging. The most intense values of the reconstruction are located near the original surfaces, up to artifacts.…”

Scattering properties of random structures in thin films

“…We shall focus on refl ective tomography algorithms for reconstructing optical three-dimensional scenes. [110][111][112] We develop a cone- reconstruction of the vehicle under trees. Trees are modeled by polarized refl ectance applied to the different facets generated by the CAD model.…”