  There has been lately a number of catastrophic events of landslides and
mudslides in the mountainous region of Rio de Janeiro, Brazil. Those were
caused by intense rain in localities where there was unplanned occupation of
slopes of hills and mountains. Thus, it became imperative creating an inventory
of landslide risk areas in densely populated cities. This work presents a way
of demarcating risk areas by using the bidimensional Continuous Wavelet
Transform (2D-CWT) applied to high resolution topographic images of the
mountainous region of Rio de Janeiro.
