Looking at Figure 7, we would like to enhance the image
such that relevant information becomes obvious. For instance any
ground object scatters the radar waves, emitted by the GPR. The
reflected signal has the shape of a hyperbola
on the resulting image. We would like to see
those hyperbolae in the image. Further, we would like to filter the
strong black-white band, which appears in the upper region of the
image, which results of the radar wave reflection on the air-ground
interface. Ideally, the filtered image would contain no noise and only
the diffraction hyperbolae of the buried objects.
Figure 6: Digging Plan of
Sand3
Another requirement is an optimal representation of the image on the screen. The human observer should be presented a high contrast GPR picture, and other diagrams, making it easier to capture the relevant information.
In this section, we tried the following algorithms:
