# Perspective PatMax for Perspective Distortion

The PMAlign tool supports Perspective PatMax for locating 2D features that display various degrees of planar perspective distortion, as shown in the following figure:

Based on the PatFlex algorithm, Perspective PatMax is ideal for locating 2D features in 3D applications, where multiple cameras must perform 3D triangulation based on a common set of found 2D features from one or more objects.