1. A method for determining the mechanical activation of a region of interest, the method comprising: obtaining, using one or more processors, map point data associated with map points on a region of interest, the map point data representing at least one of motion or electrical activity data at the map points; assigning, using the one or more processors, the map points to non-overlapping geometric areas within the region of interest; calculating, using the one or more processors, an area strain for each geometric area based on the map point data for the map points of the associated geometric area; analyzing, using the one or more processors, a characteristic of the geometric areas to distinguish normal geometric areas from abnormal geometric areas based on whether the characteristic exhibits abnormal traits; excluding, using the one or more processors, map point data associated with the abnormal geometric area; determining, using the one or more processors, a mechanical activation time for the region of interest based on the map points for the normal geometric areas that were not excluded; and displaying the mechanical activation time for the region of interest.