1. A computer-implemented process comprising: receiving information describing input points from a multi-pointer indirect input device for a plurality of frames into memory, each input point having a location in a sensor coordinate system; mapping the input points for one of the frames from locations in the sensor coordinate system to locations in a display coordinate space for a display in a computer user interface; determining displacement of each of the input points in the one of the frames with respect to one or more other points in another of the plurality of frames; modifying the locations of the mapped input points in the one of the frames according to the determined displacement for a selected input point with a lowest magnitude displacement, by determining an offset according to the lowest magnitude displacement, and, for each input point, adding the offset to the mapped location of the input point; and displaying, in the display, points representing the input points in the computer user interface at the modified locations.