1. A method comprising: capturing an image of a scene with a foreground object that is not attached to the scene, the foreground object including a point of interest that is a distinct physical aspect; warping at least one of the image and a reference image of the scene that does not include the foreground object so the image and the reference image have a same view; comparing the image to the reference image after warping to detect pixels that belong to the point of interest on the foreground object; detecting the point of interest on the foreground object using the detected pixels; displaying the image on a display; and rendering an augmentation on the display over the image based on the point of interest.