Diapositiva PPT
Combination of computational and optical techniques aimed at estimating or making
explicit geometric (3D shape) properties of objects or scenes from their digital images.
- Computational techniques : stereovision,
shape from X (motion, texture, shading, focus)
- Optical metrology : interferometry (Moiré, holographic, speckle) +
Computation for all or some pixels of the distance between a known reference frame
and the scene point that is imaged in those pixels. The output is a range image (depth
map) or a cloud of points {(xi, yi, zi), i=1..N}.
The fusion of several range images or point clouds corresponding to partially different
views of an object may yield its full 3D digitization. Funsion can be perforned with
or without knowledge of the acquisition parameters for each view.