System and Process for Human-Computer Interaction Using a Ballistic Projectile as an Input Indicator

摘要

A process for interacting with computer software using a physical ballistic projectile with the steps of: computer sends target image to projector, user shoots projectile at light-blocking shot screen, video imaging device sends video frames to computer for processing by hit detection software, hit detection software compares video frames and identifies a difference as a hit and stores the x,y location of the hit and applies a mirror transform on the x,y coordinates and adjusts the coordinates based on pre-calibrated skewing angles of the video frames, hit detection software verifies that the hit is not moving, ruling out light flicker, debris, or the projectile itself, and computer executes a user input event, such as a mouse click, at the adjusted x,y coordinates.